CN210513559U - Air tightness test equipment - Google Patents
Air tightness test equipment Download PDFInfo
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- CN210513559U CN210513559U CN201921935263.6U CN201921935263U CN210513559U CN 210513559 U CN210513559 U CN 210513559U CN 201921935263 U CN201921935263 U CN 201921935263U CN 210513559 U CN210513559 U CN 210513559U
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Abstract
The utility model discloses an air tightness test equipment belongs to check out test set technical field. The air tightness testing equipment is used for measuring the air tightness of a product, the product at least comprises an air inlet hole and a leak hole, and the air tightness testing equipment comprises a rack, a tool assembly, a sealing assembly and an air tightness testing assembly, wherein the tool assembly is fixedly connected to the rack and is used for fixing the product; the sealing assembly is used for simultaneously sealing the air inlet hole and the leak hole or sealing the air inlet hole; the air tightness testing assembly is communicated with the air inlet hole through an air pipe and is used for injecting air into the product and testing the air tightness and the leakage rate of the product. The air tightness testing equipment of the utility model is matched with the tool assembly through the sealing assembly, so that the product is sealed and attached in the tool assembly; the sealing assembly can simultaneously seal the air inlet and the leakage hole of the product or only seal the air inlet, the air tightness and the leakage rate of the product can be measured simultaneously through the air tightness testing assembly, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a check out test set technical field especially relates to an air tightness test equipment.
Background
The air tightness refers to the leakage degree of a part to liquid or gas, and the index relates to the manufacturing quality and the assembly quality of a plurality of parts, such as valve controllers in the automobile industry, products in the medical industry, various containers, household appliances and the like. The air tightness test indexes comprise air tightness test and leakage rate, and the air tightness test is used for detecting whether leakage occurs at each connecting part of the product, such as a welding surface; the leak rate is measured by measuring the amount of pressure drop across the leak orifice. In the prior art, the air tightness and the leakage rate of the product adopt a separate detection mode, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air tightness test equipment tests product gas tightness simultaneously and lets out the leakage rate, improves production efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
an air-tightness testing device for measuring the air tightness of a product, the product at least comprises an air inlet hole and a leak hole, and the air-tightness testing device comprises:
a frame;
the tool assembly is fixedly connected to the rack and used for fixing a product;
the sealing assembly is used for simultaneously sealing the air inlet hole and the leak hole or the air inlet hole;
and the air tightness testing component is communicated with the air inlet hole through an air pipe and is used for injecting air into the product and testing the air tightness and the leakage rate of the product.
Optionally, the tool assembly comprises a base, a groove for placing a product is formed in the base, an opening communicated with the groove is formed in the side wall of the base, when the product is placed in the groove, the air inlet hole corresponds to the inlet of the groove, the opening corresponds to the leak hole, and the sealing assembly corresponds to the groove and the opening respectively.
Optionally, the tool assembly further comprises a buffer member adapted to the shape of the product, and when the product is placed on the groove, the buffer member is disposed between the product and the groove.
Optionally, the tooling assembly further comprises a seal,
when the sealing component seals the air inlet hole, the sealing component is arranged between the groove and the sealing component;
when the seal assembly seals the leak orifice, the seal is disposed between the opening and the seal assembly.
Optionally, the sealing assembly comprises a first sealing assembly for sealing the air inlet hole, the first sealing assembly comprises a first pressing plate for pressing on the inlet of the groove, a through hole is formed in the first pressing plate, and the air tightness testing assembly is communicated with the air inlet through the through hole.
Optionally, the first seal assembly further comprises a first drive mechanism for driving the first platen.
Optionally, the first sealing assembly further comprises a first guide mechanism, and the first driving mechanism drives the first pressure plate to slide along the first guide mechanism.
Optionally, one end of the first pressing plate, which is in contact with the tool assembly, is provided with a first press seal, and when the first pressing plate presses the groove, the first press seal is arranged between the first pressing plate and the product.
Optionally, the sealing assembly comprises a second sealing assembly for sealing the leak.
Optionally, the hermetic test assembly is a leak detector.
The utility model has the advantages that:
the utility model provides a gas tightness test device, which is matched with a tool assembly through a sealing assembly to lead a product to be sealed and attached in the tool assembly; the sealing assembly can simultaneously seal the air inlet and the leakage hole of the product or only seal the air inlet, and the air tightness and leakage rate of the product are tested by the air tightness testing assembly. Through the cooperation of the sealing assembly, the tool assembly and the air tightness testing assembly, the air tightness and the leakage rate of the product are measured simultaneously, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a product provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air tightness testing device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a tool assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a tooling assembly and a sealing assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a first pressing plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a tooling assembly and a second sealing assembly according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
fig. 8 is an enlarged view of fig. 7 at B.
In the figure:
1-a frame; 2-tooling assembly; 3-a sealing assembly; 4-a hermetic test assembly; 5-products;
11-a switch button; 12-a display screen; 13-a security grating; 21-a machine base; 22-a buffer; 23-a seal; 31-a first seal assembly; 32-a second seal assembly; 51-an air inlet hole; 52-a leak hole; 53-a weld face;
211-grooves; 212-an opening; 311-a first drive mechanism; 312 — a first platen; 313-a first press seal; 314-a first guide mechanism; 321-a second drive mechanism; 322-a second platen; 323-a second press seal; 324-a second guiding mechanism;
3121-a through hole.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The airtightness refers to the leakage degree of a certain part or product 5 to liquid or gas, and airtightness test indexes comprise test airtightness and leakage rate. The product 5 at least comprises an air inlet 51 and a leak 52, and during the air tightness test, the air inlet 51 and the leak 52 of the product 5 are sealed, and whether the leakage phenomenon exists at each connecting part of the product 5, such as a welding surface 53 and the like, is detected; the leakage rate test is to seal the air inlet 51 of the product 5, open the leakage hole 52 of the product 5, and detect the leakage rate by measuring the pressure drop of the leakage hole 52. In the prior art, the air tightness and leakage rate of the product 5 are tested in a separate detection mode, and the production efficiency is low. As shown in fig. 1, the present embodiment is described by taking a valve controller as an example, and includes an air inlet hole 51 disposed above the valve controller, a leakage hole 52 disposed on each of two sides, and a welding surface 53.
In order to improve the production efficiency, the present embodiment provides an air tightness testing device for measuring the air tightness of a product 5, as shown in fig. 2, the air tightness testing device includes a rack 1, a tooling assembly 2, a sealing assembly 3, and an air tightness testing assembly 4. The tool assembly 2 is fixedly connected to the rack 1, and the tool assembly 2 is used for fixing a product 5; the sealing assembly 3 is used for simultaneously sealing the air inlet hole 51 and the leakage hole 52 or sealing the air inlet hole 51; the air tightness testing assembly 4 is communicated with the air inlet hole 51 through an air pipe and is used for injecting air into the product 5 and testing the air tightness and the leakage rate of the product 5. The sealing component 3 is matched with the tool component 2, so that the product 5 is sealed and attached in the tool component 2; the sealing assembly 3 can simultaneously seal the air inlet hole 51 and the leakage hole 52 of the product 5 or only seal the air inlet hole 51, and the air tightness and leakage rate of the product 5 are tested by the air tightness testing assembly 4. Through the cooperation of the sealing assembly 3, the tool assembly 2 and the air tightness testing assembly 4, the air tightness and the leakage rate of the product 5 are measured simultaneously, and the production efficiency is improved.
With continued reference to fig. 2, when the user uses the air tightness testing device, in order to facilitate statistics of production data and user operation and monitoring operation, a display screen 12 is disposed on the rack 1, and information such as the number of finished detections and the current operation steps can be displayed on the display screen 12. For the sake of safe operation, the frame 1 is provided with the safety grating 13, the safety grating 13 is symmetrically arranged on two sides of the operation opening frame, and when the user operation is not standard or unreasonable, the equipment is stopped, so as to avoid man-machine injury. Be provided with shift knob 11 on the frame 1, after the frock subassembly 2 was put into to the work piece, start shift knob 11 and begin to carry out the gas tightness test to product 5 automatically, the operation of being convenient for.
In this embodiment, the air tightness testing component 4 is a leak detector, and with continued reference to fig. 2, the leak detector is mounted on the frame 1.
Optionally, as shown in fig. 3, the tooling assembly 2 includes a base 21, a groove 211 for placing the product 5 is formed in the base 21, an opening 212 communicated with the groove 211 is formed in a side wall of the base 21, when the product 5 is placed in the groove 211, the air inlet 51 is disposed corresponding to an inlet of the groove 211, the opening 212 is disposed corresponding to the leak 52, the sealing assembly 3 is disposed corresponding to the groove 211 and the opening 212, the sealing assembly 3 seals or opens the groove 211 to further seal or open the air inlet 51, and the opening 212 is sealed or opened to further seal or open the leak 52. In the embodiment, the air inlet hole 51 of the valve controller is arranged above, and the two leakage holes 52 are respectively arranged at two sides; accordingly, an inlet of the recess 211 is disposed above the housing 21, the valve controller is installed in the recess 211 from the inlet, and the two openings 212 are disposed on both sidewalls of the recess 211, respectively.
With reference to fig. 3, in this embodiment, the tooling assembly 2 further includes a buffer 22 adapted to the shape of the product 5, and when the product 5 is placed on the groove 211, the buffer 22 is disposed between the product 5 and the groove 211, so as to prevent the product 5 from being directly placed in the groove 211 and damaged. Alternatively, the buffer 22 is made of a material having a large elasticity such as rubber.
With continued reference to fig. 3, in the present embodiment, the tooling assembly 2 further includes a sealing member 23, and when the sealing assembly 3 seals the air inlet hole 51, the sealing member 23 is disposed between the groove 211 and the sealing assembly 3; when the seal assembly seals the leak, the seal 23 is disposed between the opening 212 and the seal assembly 3. Optionally, the seal 23 is a sealing ring. Specifically, a sealing groove is formed at the periphery of an inlet of the groove 211 of the base 21 and a sealing ring is mounted on the periphery of the inlet; the periphery of the opening 212 is provided with a sealing groove and a sealing ring is arranged.
Optionally, in conjunction with fig. 3 and 4, the seal assembly 3 comprises a first seal assembly 31 and a second seal assembly 32. Wherein the first sealing assembly 31 is used for sealing the air inlet hole 51, and the second sealing assembly 32 is used for sealing the leakage hole 52. As shown in fig. 4, in the present embodiment, the first sealing assembly 31 is disposed above the tooling assembly 2, and the two sets of second sealing assemblies 32 are disposed on two sides of the tooling assembly 2 respectively.
Specifically, with continued reference to fig. 4, the first seal assembly 31 includes a first pressing plate 312 for pressing against the entrance of the recess 211, and a first driving mechanism 311 for driving the first pressing plate 312. In this embodiment, the first driving mechanism 311 is an air cylinder, the first pressing plate 312 is mounted on a piston rod of the air cylinder, and the extension and retraction of the piston rod drives the first pressing plate 312 to compress and open; in other embodiments, the first driving mechanism 311 may also be a motor and ball screw structure, the first pressing plate 312 is mounted on the ball screw, and the motor drives the ball screw to move so as to compress and open the first pressing plate 312.
To ensure that the first pressing plate 312 can be accurately pressed on the groove 211, the first sealing assembly 31 further includes a first guiding mechanism 314, and the first driving mechanism 311 drives the first pressing plate 312 to slide along the first guiding mechanism 314. Optionally, the first guiding mechanism 314 includes sliding bearings and optical axes, and in order to ensure that the first pressing plate 312 and the first driving mechanism 311 are stressed uniformly on the first guiding mechanism 314 and the operation stability is good, in this embodiment, four optical axes and four sliding bearings are symmetrically arranged around the first driving mechanism 311.
Optionally, as shown in fig. 5, one end of the first pressing plate 312, which is in contact with the tooling assembly 2, is provided with a first press seal 313, when the first pressing plate 312 is pressed on the groove 211, the first press seal 313 is arranged between the first pressing plate 312 and the product 5, and the first press seal 313 is used for sealing the first pressing plate 312 and the air inlet 51. The first pressure plate 312 is provided with a through hole 3121, and the airtightness testing assembly 4 communicates with the air inlet through the through hole 3121.
As shown in fig. 6 and 7, the second sealing assembly 32 optionally includes a second pressure plate 322 for sealing the leak hole 52, and a second driving mechanism 321 for driving the second pressure plate 322. In this embodiment, the second driving mechanism 321 is an air cylinder, and a piston rod of the air cylinder is provided with a second pressing plate 322.
As shown in fig. 7 and 8, to ensure that the second pressing plate 322 can be pressed on the opening 212 accurately, the second sealing assembly 32 further includes a second guiding mechanism 324, and the second driving mechanism 321 drives the second pressing plate 322 to slide along the second guiding mechanism 324. In this embodiment, the second guiding mechanism 324 is a mounting base with a guiding hole, the side surface of the mounting base is attached to the side surface of the base, the guiding hole of the mounting base is disposed corresponding to the opening 212, and the piston rod drives the second pressing plate 322 to penetrate through the guiding hole and slide in the guiding hole. Optionally, a sealing ring is installed on the end of the guide hole contacting the opening along the circumferential direction, so as to improve the sealing performance of the leak hole 52.
Optionally, a second press seal 323 is disposed at an end of the second press plate 322, which is in contact with the tool assembly 2, when the second press plate 322 is pressed against the opening 212, the second press seal 323 is disposed between the second press plate 322 and the product 5, and the second press seal 323 is configured to seal the second press plate 322 and the leak 52, so as to avoid air leakage from the leak 52 during pressure detection, and improve reliability of a detection result.
In this embodiment, an example of an air tightness test of an automotive valve controller by using an air tightness test device is described, which includes the steps of:
s1: feeding the valve controller by a worker or a mechanical arm, and putting the valve controller into the tool;
s2: a start switch button 11;
s3: the first air cylinder drives the first pressure plate 312 to be pressed on the groove 211, and the air inlet hole is sealed through the first press sealing piece 313; two second air cylinders on two sides of the machine base 21 simultaneously drive a second pressure plate 322 to press the opening 212, and the leak hole is sealed through a second sealing element 323;
s4: the leak detector carries out air tightness test on the welding surface of the valve controller;
s5: two second air cylinders on two sides of the machine base 21 simultaneously drive the second pressure plate 322 to retract and open on the opening 212, so as to open the leak hole;
s6: the leak detector tests the leakage rate of the leak hole of the valve controller;
s7: after the test is finished, the first air cylinder drives the first pressing plate 312 to retract and open from the groove 211, and the valve controller is taken out manually or by a mechanical arm;
at this point, the airtightness test of one valve controller is completed, and the next valve controller is tested by sequentially circulating the steps S1-S7.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A tightness testing device for measuring the tightness of a product (5), said product (5) comprising at least an air inlet (51) and a leak (52), characterized in that it comprises:
a frame (1);
the tool assembly (2) is fixedly connected to the rack (1), and the tool assembly (2) is used for fixing the product (5);
a sealing assembly (3) for simultaneously sealing the air intake (51) and the leakage orifice (52) or sealing the air intake (51);
and the air tightness testing component (4) is communicated with the air inlet hole (51) through an air pipe and is used for injecting gas into the product (5) and testing the air tightness and the leakage rate of the product (5).
2. The airtightness testing apparatus according to claim 1, wherein the tool assembly (2) includes a base (21), a groove (211) for placing the product (5) is formed in the base (21), an opening (212) communicated with the groove (211) is formed in a side wall of the base (21), when the product (5) is placed in the groove (211), the air inlet (51) is disposed corresponding to an inlet of the groove (211), the opening (212) is disposed corresponding to the leak hole (52), and the sealing assembly (3) is disposed corresponding to the groove (211) and the opening (212), respectively.
3. The tightness testing device according to claim 2, characterized in that said tooling assembly (2) further comprises a buffer (22) adapted to the shape of said product (5), said buffer (22) being arranged between said product (5) and said groove (211) when said product (5) is placed on said groove (211).
4. The tightness testing device according to claim 2, characterized in that said tooling assembly (2) further comprises a seal (23),
the seal (23) is disposed between the recess (211) and the seal assembly (3) when the seal assembly (3) seals the intake aperture (51);
the seal (23) is arranged between the opening (212) and the seal assembly (3) when the seal assembly (3) seals the leak (52).
5. The tightness test device according to claim 2, wherein said sealing assembly (3) comprises a first sealing assembly (31) for sealing said air intake vent (51), said first sealing assembly (31) comprising a first pressure plate (312) for pressing against an entrance of said groove (211), said first pressure plate (312) being provided with a through hole (3121), said tightness test assembly (4) communicating with said air intake vent (51) through said through hole (3121).
6. The tightness test apparatus according to claim 5, wherein the first sealing assembly (31) further comprises a first driving mechanism (311) for driving the first pressing plate (312).
7. The tightness test apparatus according to claim 6, wherein the first sealing assembly (31) further comprises a first guide mechanism (314), the first driving mechanism (311) driving the first pressing plate (312) to slide along the first guide mechanism (314).
8. The tightness testing device according to claim 5, characterized in that one end of the first pressure plate (312) in contact with the tooling assembly (2) is provided with a first press seal (313), the first press seal (313) being arranged between the first pressure plate (312) and the product (5) when the first pressure plate (312) presses the recess (211).
9. The tightness testing device according to claim 2, characterized in that said sealing assembly (3) comprises a second sealing assembly (32) for sealing said leak (52).
10. The tightness test device according to any one of claims 1 to 9, characterized in that said tightness test assembly (4) is a leak detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935263.6U CN210513559U (en) | 2019-11-11 | 2019-11-11 | Air tightness test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935263.6U CN210513559U (en) | 2019-11-11 | 2019-11-11 | Air tightness test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513559U true CN210513559U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921935263.6U Active CN210513559U (en) | 2019-11-11 | 2019-11-11 | Air tightness test equipment |
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| CN (1) | CN210513559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188729A (en) * | 2021-04-26 | 2021-07-30 | 上海闻泰信息技术有限公司 | Air tightness test fixture |
-
2019
- 2019-11-11 CN CN201921935263.6U patent/CN210513559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188729A (en) * | 2021-04-26 | 2021-07-30 | 上海闻泰信息技术有限公司 | Air tightness test fixture |
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