Multi-station airtightness detection device

Abstract

The utility model discloses a multi-station air tightness detection device. The device comprises a rack; the multiple groups of airtightness detection modules are adjacently arranged on the rack; the airtightness detection module comprises a detection unit, a pressurization storage unit, a positioning unit, a gas path unit and an NG product blanking unit; the detection unit, the pressurization storage unit, the positioning unit and the NG product discharging unit are all fixed to the rack, and the gas circuit unit is arranged on the positioning unit; the positioning unit is used for positioning two to-be-tested products; the pressurization storage unit is connected with the detection unit, and the pressurization storage unit stores an external air source, pressurizes the air source and conveys the air source to the detection unit; the detection unit is connected with the two to-be-detected products through the gas circuit unit, and is used for detecting the gas tightness of the two to-be-detected products; and the NG product blanking unit is used for blanking and conveying unqualified to-be-detected products. According to the utility model, each station is equipped with an independent detection device, so that single-station single detection, double-station double detection, three-station simultaneous operation and simultaneous testing of a plurality of different products can be realized, and unified products are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field, especially a multi-station airtightness detection device. BACKGROUND

[0002] In prior art, in industrial production, it is often needed to carry out aeration test on some places of products to ensure the airtightness of products and judge the products as OK / NG products. The existing airtightness detection device is difficult to detect multiple products at the same time. Therefore, a multi-station airtightness detection device is urgently needed to simultaneously detect the differential pressure of different products and realize single-station and multi-station switching operation at any time. SUMMARY

[0003] According to the utility model embodiment, a multi-station airtightness detection device is provided, which comprises:

[0004] A rack;

[0005] A plurality of airtightness detection modules are arranged adjacent to each other on the rack;

[0006] The airtightness detection module comprises a detection unit, a pressurized storage unit, a positioning unit, an air path unit and an NG product discharging unit;

[0007] The detection unit, the pressurized storage unit, the positioning unit and the NG product discharging unit are fixed on the rack, and the air path unit is arranged on the positioning unit;

[0008] The positioning unit positions two products to be tested;

[0009] The pressurized storage unit is connected with the detection unit, and the pressurized storage unit stores the external gas source and pressurizes and delivers it to the detection unit;

[0010] The detection unit is connected with the two products to be tested through the air path unit, and detects the airtightness of the two products to be tested;

[0011] The NG product discharging unit discharges and delivers the unqualified product to be tested.

[0012] Further, the detection unit comprises an airtightness tester, which is fixed on the rack and connected with the output end of the pressurized storage unit and the input end of the air path unit, and detects the airtightness of the product to be tested.

[0013] Further, the pressurized storage unit comprises a gas storage tank, a pressurizing valve and a first air pressure gauge;

[0014] The gas storage tank is arranged on the rack, the output port of the gas storage tank is connected with the detection unit, and the pressurizing valve and the first air pressure gauge are arranged on the gas storage tank;

[0015] The air inlet of the pressure booster valve is connected with an external air source, and the air outlet of the pressure booster valve is connected with the gas storage tank, and the pressure booster valve pressurizes the external air source and delivers it to the gas storage tank;

[0016] The first air pressure gauge is connected with the inside of the gas storage tank to detect the air pressure of the gas storage tank.

[0017] Further, the positioning unit comprises a sliding table cylinder, a pair of sliding rails and a positioning plate.

[0018] The sliding table cylinder and the pair of sliding rails are fixed on the rack, and the pair of sliding rails are symmetrically arranged on the two sides of the sliding table cylinder.

[0019] The positioning plate is connected with the output end of the sliding table cylinder, and the two ends of the positioning plate are respectively connected with the pair of sliding rails in sliding mode, and the positioning plate is used for positioning and fixing the two products to be tested.

[0020] Further, a plurality of positioning holes and a plurality of positioning columns are arranged on the positioning plate, and the positioning holes and the positioning columns are used for positioning and fixing the products to be tested.

[0021] Further, the gas path unit comprises a first gas block, a pair of second gas blocks and a pair of second air pressure gauges.

[0022] The first gas block and the pair of second gas blocks are fixed on the positioning unit, and the pair of second gas blocks are respectively connected with the air outlets of the two products to be tested.

[0023] The first gas block has one input port and two output ports, and the input port and the two output ports are connected with each other, the input port is connected with the detection unit, and the two output ports are respectively connected with the test interfaces of the two products to be tested.

[0024] The pair of second gas blocks are respectively connected with the pair of second air pressure gauges, and the second gas block has two interfaces connected with each other, and the two interfaces are respectively connected with the air outlet of the product to be tested and the second air pressure gauge.

[0025] Further, the NG product discharging unit comprises a conveying belt, an outer cover and three sensors.

[0026] The conveying belt is arranged on the rack and penetrates through the two ends of the rack, and the conveying belt conveys the unqualified products to be tested.

[0027] The outer cover is arranged on the conveying belt, and the outer cover limits the unqualified products to be tested, and three sensing ports are arranged on the outer cover.

[0028] The three sensors are arranged on the outer cover and are respectively arranged at the three sensing ports, and the three sensors are respectively used for incoming detection, to-detection and full-detection of the unqualified products to be tested.

[0029] Further, the three sensors are respectively incoming sensor, to-detection sensor and full-detection sensor, and the to-detection sensor is arranged between the incoming sensor and the full-detection sensor.

[0030] The multi-station airtightness detection device according to the embodiment of the present application is provided with independent detection devices for each station, and can be tested individually in single station, double stations, three stations simultaneously, and multiple different products simultaneously, without unified products.

[0031] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 FIG. 1 is a front view of a multi-station airtightness detection device according to an embodiment of the present application;

[0033] Figure 2 FIG. 4 is a structural schematic view of a pressurized storage unit of the multi-station airtightness detection device according to the embodiment of the present application;

[0034] Figure 3 FIG. 5 is a structural schematic view of a positioning unit of the multi-station airtightness detection device according to the embodiment of the present application;

[0035] Figure 4 FIG. 6 is a cross-sectional schematic view of a gas path unit of the multi-station airtightness detection device according to the embodiment of the present application;

[0036] Figure 5 FIG. 7 is a structural schematic view of an NG product discharging unit of the multi-station airtightness detection device according to the embodiment of the present application. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, which further illustrate the present application.

[0038] Firstly, the multi-station airtightness detection device according to the embodiment of the present application will be described in detail below with reference to the accompanying drawings. Figures 1-5 The multi-station airtightness detection device according to the embodiment of the present application is used to realize the simultaneous detection of multiple products, and has a wide range of application scenarios.

[0039] As shown in FIG. 1, the multi-station airtightness detection device according to the embodiment of the present application comprises a rack 1 and multiple groups of airtightness detection modules, and the multiple groups of airtightness detection modules are arranged adjacently on the rack 1. Figures 1-5 The number of airtightness detection modules can be set to three groups, four groups, etc. according to requirements, so as to realize the simultaneous detection of airtightness in three stations or four stations, and different or same products can be placed in each station, and multiple different products can be tested simultaneously without unified products.

[0040] Specifically, as shown in FIG. 2, the multi-station airtightness detection device according to the embodiment of the present application comprises a rack 1 and multiple groups of airtightness detection modules, and the multiple groups of airtightness detection modules are arranged adjacently on the rack 1. Figures 1-5As shown, in this embodiment, the airtightness testing module includes: a testing unit 2, a pressurization and storage unit 3, a positioning unit 4, an air path unit 5, and an NG product unloading unit 6; the testing unit 2, the pressurization and storage unit 3, the positioning unit 4, and the NG product unloading unit 6 are all fixed on the frame 1, and the air path unit 5 is set on the positioning unit 4; the positioning unit 4 positions two products to be tested; the pressurization and storage unit 3 is connected to the testing unit 2, and the pressurization and storage unit 3 stores and pressurizes external air sources and delivers them to the testing unit 2; the testing unit 2 is connected to the two products to be tested through the air path unit 5 to test the airtightness of the two products to be tested; the NG product unloading unit 6 unloads and delivers unqualified products to be tested. Two identical products to be tested can be placed in a separate workstation. The air tightness of the two identical products can be tested simultaneously through the detection unit 2 and the air circuit unit 5, which improves production efficiency. The pressurization and storage unit 3 ensures a stable pressure supply and can quickly reach the required test pressure. Once a defective product is detected, the NG product unloading unit 6 will automatically remove it from the production line to prevent defective products from flowing into the next process, which helps maintain high quality standards and reduce the defect rate.

[0041] Specifically, such as Figures 1-5 As shown, in this embodiment, the detection unit 2 includes an air tightness meter, which is fixed on the frame 1 and connected to the output end of the pressurization and storage unit 3 and the input end of the air circuit unit 5. The air tightness meter detects the air tightness of the product under test.

[0042] Specifically, such as Figures 1-5 As shown, in this embodiment, the pressurized storage unit 3 includes: a gas storage tank 31, a pressurization valve 32, and a first pressure gauge 33; the gas storage tank 31 is mounted on the frame 1, and the output port 34 of the gas storage tank 31 is connected to the detection unit 2; the pressurization valve 32 and the first pressure gauge 33 are both mounted on the gas storage tank 31; the inlet of the pressurization valve 32 is connected to an external gas source, and the outlet of the pressurization valve 32 is connected to the gas storage tank 31; the pressurization valve 32 pressurizes the external gas source and delivers it to the gas storage tank 31; the gas storage tank 31 can store a certain amount of high-pressure gas to ensure sufficient gas reserves during high-pressure gas testing; the first pressure gauge 33 is connected to the inside of the gas storage tank 31 and can monitor the gas pressure of the gas storage tank 31 in real time to ensure that the gas pressure inside the gas storage tank 31 reaches the set value.

[0043] Specifically, such as Figures 1-5As shown, in this embodiment, the positioning unit 4 includes: a slide cylinder 41, a pair of slide rails 42, and a positioning plate 43; the slide cylinder 41 and the pair of slide rails 42 are fixed on the frame 1, and the pair of slide rails 42 are symmetrically arranged on both sides of the slide cylinder 41; the positioning plate 43 is connected to the output end of the slide cylinder 41, and the two ends of the positioning plate 43 are slidably connected to the pair of slide rails 42 respectively. The positioning plate 43 is used to position and fix two products to be tested. The two products to be tested are placed on the positioning plate 43 and placed on both sides of the slide cylinder 41 respectively. If the product to be tested is a qualified product, the slide cylinder 41 pushes the product to be tested on the positioning plate 43 from one end to the other end for the next step of processing. If the product to be tested is an NG product, the NG product is manually placed into the NG product unloading unit 6.

[0044] Furthermore, such as Figures 1-5 As shown, in this embodiment, the positioning plate 43 is provided with a plurality of positioning holes 44 and a plurality of positioning posts 45, which are used for positioning and fixing the product to be tested.

[0045] Specifically, such as Figures 1-5 As shown, in this embodiment, the gas path unit 5 includes: a first gas distribution block 51, a pair of second gas distribution blocks 52, and a pair of second pressure gauges; the first gas distribution block 51 and the pair of second gas distribution blocks 52 are fixed on the positioning unit 4, and the pair of second gas distribution blocks 52 are respectively connected to the gas outlets of the two products under test; the first gas distribution block 51 has one input port 511 and two output ports 512, the input port 511 and the two output ports 512 are interconnected, the input port 511 is connected to the detection unit 2, and the two output ports 512 are respectively connected to the test interfaces of the two products under test, which can evenly distribute the high-pressure gas from the detection unit 2 to the two products under test; the pair of second... The air distribution block 52 is connected to a pair of second pressure gauges. The second air distribution block 52 has two interconnected interfaces 521. The two interfaces 521 are connected to the air outlet end of the product to be tested and the second pressure gauge, respectively. Through the pair of second air distribution blocks 52 and the pair of second pressure gauges, the air outlet pressure of each product can be monitored independently, realizing simultaneous independent testing of two products. The external control system judges the sealing performance of the product by comparing the air pressure released by the air tightness tester with the air pressure displayed by the pressure gauge. If the difference exceeds the set range, the product needs to be manually placed in the NG product unloading unit 6. The OK product will move directly to the next station with the positioning unit 4, waiting for the operator at the next station to pick up the material.

[0046] Specifically, such as Figures 1-5As shown, in this embodiment, the NG product unloading unit 6 includes: a conveyor belt 61, an outer cover 62, and three sensors. The conveyor belt 61 is mounted on the frame 1 and runs through both ends of the frame 1, conveying non-conforming products to be tested. The outer cover 62 covers the conveyor belt 61, limiting the non-conforming products to be tested and providing protection, reducing the influence of external factors on the conveying process. The outer cover 62 has three sensing ports. The three sensors are mounted on the outer cover 62 and are respectively located at the three sensing ports. The three sensors are used for incoming material detection, material arrival detection, and full material detection of non-conforming products to be tested. The sensor data can be integrated with an external control system to record the movement trajectory and processing status of each non-conforming product.

[0047] Furthermore, such as Figures 1-5 As shown, in this embodiment, the three sensors are the incoming material sensor 63, the receiving material sensor 64, and the full material sensor 65. The receiving material sensor 64 is located between the incoming material sensor 63 and the full material sensor 65. The incoming material sensor 63 is located at the sensing port at the beginning of the conveyor belt 61 and is used to detect whether any defective products have entered the conveyor belt 61 so that the conveyor belt 61 can be started in time. The receiving material sensor 64 is located at the sensing port in the middle of the conveyor belt 61 and is used to confirm whether the defective products have reached the predetermined point and remind the operator to remove the defective products in time. The full material detection sensor is located at the sensing port at the end of the conveyor belt 61 and is used to monitor whether the collection area is full. When full material is detected, the system can issue an alarm or stop the conveyor belt 61 to avoid excessive accumulation of products that may cause blockages or other problems.

[0048] Working Principle: The product to be tested is placed on the positioning plate 43 of the positioning unit 4 and slid to the test position by the sliding cylinder 41. The pressure boosting valve 32 in the pressure boosting and storage unit 3 pressurizes the external air source and delivers it to the air storage tank 31. Then, high-pressure gas is injected into the product through the air tightness tester of the detection unit 2 to reach the preset pressure value. The air tightness tester closes the air supply valve and begins to monitor the internal pressure change of the product. At the same time, the second pressure gauge in the air circuit unit 5 monitors the gas pressure flowing out of the product and compares the difference between the input and output to determine whether there is a leak. The system determines whether the air tightness of the product is qualified based on the data analysis results of the air tightness tester and the pressure gauge. If the error value exceeds the predetermined range, the product is considered unqualified. Unqualified products are automatically removed by the conveyor belt 61 of the NG product unloading unit 6, and the outer cover 62 provides physical limit to prevent the product from falling. Three sensors monitor the incoming material, the material arrival, and the full material status to ensure smooth processing.

[0049] Above, refer to Figures 1-5 The present invention describes a multi-station airtightness testing device according to an embodiment of the present invention. Each station is equipped with an independent testing device, which can perform single-station single testing, dual-station dual testing, and simultaneous operation of three stations, and can test multiple different products at the same time without the need for uniform products.

[0050] It should be noted that in this specification, the terms "comprising", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] Although the content of the present application has been described in detail by the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present application. After reading the above content, various modifications and alternatives of the present application will be obvious to those skilled in the art. Therefore, the protection scope of the present application should be defined by the appended claims.

Claims

1. A multi-station hermetic seal testing apparatus, characterized by, The utility model relates to a kind of air-tightness detection device for two products, including: rack;Multiple groups of air-tightness detection module are adjacently arranged on the rack;The air-tightness detection module includes detection unit, pressurized storage unit, positioning unit, gas path unit and NG product discharge unit;The detection unit, pressurized storage unit, positioning unit and NG product discharge unit are fixed on the rack, and the gas path unit is arranged on the positioning unit;The positioning unit positions two products to be measured;The pressurized storage unit is connected with the detection unit, and the pressurized storage unit stores external gas source and pressurized delivery to the detection unit;The detection unit is connected with the two products to be measured by the gas path unit, and the air-tightness of the two products to be measured is detected;The NG product discharge unit discharges and transports unqualified product to be measured. The detection unit includes air-tightness tester, which is fixed on the rack and connected with the output end of the pressurized storage unit and the input end of the gas path unit. The pressurized storage unit includes gas storage tank, pressurizing valve and first air pressure gauge. The gas storage tank is arranged on the rack, and the output port of the gas storage tank is connected with the detection unit. The air inlet of the pressurizing valve is connected with external gas source, the air outlet of the pressurizing valve is connected with the gas storage tank, and the pressurizing valve pressurizes and transports external gas source into the gas storage tank. The first air pressure gauge is connected with the inside of the gas storage tank to detect the air pressure of the gas storage tank. The positioning unit includes slide table air cylinder, a pair of slide rails and positioning plate. The slide table air cylinder and the pair of slide rails are fixed on the rack, and the pair of slide rails are symmetrically arranged on the two sides of the slide table air cylinder. The positioning plate is connected with the output end of the slide table air cylinder, and the two ends of the positioning plate are respectively connected with the pair of slide rails.

2. The multi-station hermetic seal testing apparatus of claim 1, wherein, The positioning plate is provided with a plurality of positioning holes and a plurality of positioning columns for positioning and fixing the products to be measured.

3. The multi-station hermetic seal testing apparatus of claim 1, wherein, The gas path unit includes first gas block, a pair of second gas blocks and a pair of second air pressure gauges. The first gas block has one input port and two output ports, and the one input port and the two output ports are connected with each other. The pair of second gas blocks are respectively connected with the pair of second air pressure gauges. The NG product discharge unit includes conveying belt, outer cover and three inductors.

4. The multi-station hermetic seal testing apparatus of claim 1, wherein, The conveying belt is arranged on the rack and penetrates through the two ends of the rack, and the conveying belt conveys unqualified product to be measured. ​ ​ 5. The multi-station hermetic seal testing apparatus of claim 4, wherein, ​ 6. The multi-station hermetic seal testing apparatus of claim 1 or 4, wherein, ​ ​ ​ ​ 7. The multi-station hermetic seal testing apparatus of claim 1, wherein, ​ ​ The outer cover is arranged on the conveying belt, and the outer cover limits the unqualified products to be tested. The three inductors are arranged on the outer cover and are respectively arranged at the three inductive ports, and the three inductors are respectively used for incoming material detection, to-material detection and full-material detection of the unqualified products to be tested.

8. The multi-station hermetic test apparatus of claim 7, wherein, The three inductors are respectively an incoming material inductor, a to-material inductor and a full-material inductor, and the to-material inductor is arranged between the incoming material inductor and the full-material inductor.

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