CN219178846U - Relay tightness detection device - Google Patents
Relay tightness detection device Download PDFInfo
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- CN219178846U CN219178846U CN202320433594.XU CN202320433594U CN219178846U CN 219178846 U CN219178846 U CN 219178846U CN 202320433594 U CN202320433594 U CN 202320433594U CN 219178846 U CN219178846 U CN 219178846U
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Abstract
The utility model discloses a relay tightness detection device which comprises a detection device body, wherein the detection device body comprises an airtight tester and a test tool die, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die and a lower die, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder, and a containing cavity matched with the relay is formed in the upper die and the lower die. According to the utility model, by arranging the airtight tester and the test tool die, the dynamic monitoring of air pressure, the quantitative air pressure change during the large leakage of the monitoring relay and the air pressure change rate during the micro leakage can be realized, the whole test time is shortened to be within 10S from the original 10 minutes, and the rapid detection of the large leakage and the micro leakage is realized.
Description
Technical Field
The utility model relates to the technical field of relay detection devices, in particular to a relay tightness detection device.
Background
The air tightness of the device is detected, and single and small quantity detection is carried out by adopting a magnifying glass to observe and seal, dip and the like. At present, the explosion-proof relay is subjected to water detection in the following mode: manually removing the relay from the package, placing the relay in a tray, and immersing the sealing surface of the relay in water at 80+/-5 ℃ upwards, so that the uppermost end of the sealing surface is below 10mm of the water surface, wherein the immersion time is not less than 10min. At any time within the test duration, observing that obvious continuous bubbles, more than two large bubbles or attached bubbles with gradually enlarged volumes are not allowed to appear, testing each sealing surface of a device with a plurality of sealing surfaces, manually airing a relay tiling table surface area after the test is finished, reloading the relay into an original package after the air drying, and finishing the test. Because of many operation steps, the inspection efficiency is low, and reasons such as easy fatigue are detected in personnel's visual sense, have serious missed detection hidden danger.
The overall efficiency of the water detection mode is low, and whether the relay bubbles or not is observed by naked eyes to judge whether the air leakage mode exists or not, so that the effectiveness cannot be guaranteed. In addition, the industry also has a gas detection mode: the air leakage check is checked by adopting the air filling, but the relay body is too small and has no air filling point.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a relay tightness detection device.
The technical scheme adopted for solving the technical problems is as follows: the relay tightness detection device comprises a detection device body, wherein the detection device body comprises an airtight tester and a test tool die, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die and a lower die, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder, and a containing cavity matched with the relay is formed in the upper die and the lower die.
As a further improvement of the utility model: the periphery of the lower die is provided with a sealing ring, the lower die is provided with an air inlet, and the air inlet is connected with an airtight tester.
As a further improvement of the utility model: the air tightness tester is connected with an air compressor, and is provided with a pressure regulating valve which is connected with the air compressor.
As a further improvement of the utility model: the airtight tester is provided with a pressure sensor, and the pressure sensor is connected with the test tool die.
As a further improvement of the utility model: the detection device body is provided with a display screen, the airtight tester is provided with a control board, and the display screen is electrically connected with the control board.
As a further improvement of the utility model: the air tightness tester is provided with an electromagnetic valve A and an electromagnetic valve D, one end of the electromagnetic valve A is connected with a pressure regulating valve, the other end of the electromagnetic valve A is connected with the electromagnetic valve D, the electromagnetic valve D is connected with a pressure sensor, the pressure sensor is connected with an air inlet hole of the test tool die, and the control panel is respectively connected with the electromagnetic valve A and the electromagnetic valve D.
As a further improvement of the utility model: the airtight tester is provided with an electromagnetic valve B, one end of the electromagnetic valve B is connected with the gas tank, and the other end of the electromagnetic valve B is connected with an electromagnetic valve D.
As a further improvement of the utility model: the airtight tester is provided with an electromagnetic valve C, and one end of the electromagnetic valve C is connected with an electromagnetic valve D.
As a further improvement of the utility model: the lower die is arranged on a test table surface of the detection device body, the test table surface is provided with a linear slide rail, and the lower die is in sliding connection with the linear slide rail.
As a further improvement of the utility model: and an angle code wheel is arranged below the detection device body.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, by arranging the airtight tester and the test tool die, the dynamic monitoring of air pressure, the quantitative air pressure change during the large leakage of the monitoring relay and the air pressure change rate during the micro leakage can be realized, the whole test time is shortened to be within 10S from the original 10 minutes, and the rapid detection of the large leakage and the micro leakage is realized.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a schematic structural diagram of a lower die test state according to the present utility model.
Fig. 3 is a schematic structural diagram of a lower die discharging state of the utility model.
Fig. 4 is a schematic structural diagram of the test tool die of the present utility model.
Reference numerals: 1. a detection device body; 2. an air tightness tester; 3. testing a tooling die; 4. an upper die; 5. a lower die; 6. a switch button; 7. a display screen; 8. a linear slide rail; 9. a slide block; 10. a cylinder; 11. an angle code wheel; 12. and a relay.
Detailed Description
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The utility model will now be further described with reference to the accompanying drawings and examples:
embodiment case one:
the relay tightness detection device comprises a detection device body 1, wherein the detection device body comprises an airtight tester 2 and a test tool die 3, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die 4 and a lower die 5, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder 10, and a containing cavity matched with the relay 12 is formed in the upper die and the lower die. The air tightness tester uses air pressure to replace water pressure to detect whether the product has leakage phenomenon or not, and can also provide stable standard pressure and control. The accommodating cavity formed between the upper die and the lower die is used for accommodating the relay and positioning and limiting the relay. And placing the product in a lower die, driving an upper die to move downwards to the upper surface of the lower die by an air cylinder, automatically sealing the tested surface of the product, and matching with an airtight tester to finish airtight detection.
Implementation case two:
the relay tightness detection device comprises a detection device body 1, wherein the detection device body comprises an airtight tester 2 and a test tool die 3, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die 4 and a lower die 5, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder 10, and a containing cavity matched with the relay is formed in the upper die and the lower die. The air tightness tester uses air pressure to replace water pressure to detect whether the product has leakage phenomenon or not, and can also provide stable standard pressure and control. The accommodating cavity formed between the upper die and the lower die is used for accommodating the relay and positioning and limiting the relay. And placing the product in a lower die, driving an upper die to move downwards to the upper surface of the lower die by an air cylinder, automatically sealing the tested surface of the product, and matching with an airtight tester to finish airtight detection.
The lower die is arranged on the test table surface of the detection device body. The test table top is provided with a linear slide rail 8, and the lower die is in sliding connection with the linear slide rail. And a linear sliding rail is arranged, so that staff can conveniently take and put the relay. And a sliding block 9 matched with the linear sliding rail is arranged below the lower die, and the sliding of the lower die on the linear sliding rail is realized through the mutual matching of the sliding block and the linear sliding rail. When the relay needs to be placed, the lower die slides out through the linear slide rail, and after the relay is placed, the lower die slides into the corresponding position below the upper die through the linear slide rail. And an angle wheel 11 is arranged below the detection device body. The setting of the angle code wheel facilitates the movement of the detection device body. And a sealing ring is arranged on the periphery of the lower die. By arranging the sealing ring on the periphery of the lower die, the sealing effect between the upper die and the lower die can be ensured. The lower die is provided with an air inlet hole, and the air inlet hole is connected with the airtight tester.
Implementation case three:
the relay tightness detection device comprises a detection device body 1, wherein the detection device body comprises an airtight tester 2 and a test tool die 3, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die 4 and a lower die 5, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder 10, and a containing cavity matched with the relay is formed in the upper die and the lower die. The air tightness tester uses air pressure to replace water pressure to detect whether the product has leakage phenomenon or not, and can also provide stable standard pressure and control. The accommodating cavity formed between the upper die and the lower die is used for accommodating the relay and positioning and limiting the relay. And placing the product in a lower die, driving an upper die to move downwards to the upper surface of the lower die by an air cylinder, automatically sealing the tested surface of the product, and matching with an airtight tester to finish airtight detection. The lower die is arranged on the test table surface of the detection device body. The test table surface is provided with a linear slide rail, and the lower die is in sliding connection with the linear slide rail. And a linear sliding rail is arranged, so that staff can conveniently take and put the relay. When the relay needs to be placed, the lower die slides out through the linear slide rail, and after the relay is placed, the lower die slides into the corresponding position below the upper die through the linear slide rail. And an angle code wheel is arranged below the detection device body. The setting of the angle code wheel facilitates the movement of the detection device body. And a sealing ring is arranged on the periphery of the lower die. By arranging the sealing ring on the periphery of the lower die, the sealing effect between the upper die and the lower die can be ensured. The lower die is provided with an air inlet hole, and the air inlet hole is connected with the airtight tester.
The air tightness tester is connected with an air compressor, and is provided with a pressure regulating valve which is connected with the air compressor. The airtight tester is provided with a pressure sensor, and the pressure sensor is connected with the test tool die. The pressure sensor is used for detecting and calculating the pressure. The detection device body is provided with a display screen 7, the airtight tester is provided with a control board, and the display screen 7 is electrically connected with the control board. The display screen is used for displaying test results or receiving instructions input by an operator. The detection device body is provided with a switch button 6, and the switch button is used for controlling the opening and closing of the detection device body. The cylinder is fixed with the detection device body through an aluminum profile.
Implementation case four:
the relay tightness detection device comprises a detection device body 1, wherein the detection device body comprises an airtight tester 2 and a test tool die 3, the airtight tester is arranged on the detection device body, and the airtight tester is connected with the test tool die; the test fixture die comprises an upper die 4 and a lower die 5, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder 10, and a containing cavity matched with the relay is formed in the upper die and the lower die. The air tightness tester uses air pressure to replace water pressure to detect whether the product has leakage phenomenon or not, and can also provide stable standard pressure and control. The accommodating cavity formed between the upper die and the lower die is used for accommodating the relay and positioning and limiting the relay. And placing the product in a lower die, driving an upper die to move downwards to the upper surface of the lower die by an air cylinder, automatically sealing the tested surface of the product, and matching with an airtight tester to finish airtight detection. The lower die is arranged on the test table surface of the detection device body. The test table surface is provided with a linear slide rail, and the lower die is in sliding connection with the linear slide rail. And a linear sliding rail is arranged, so that staff can conveniently take and put the relay. When the relay needs to be placed, the lower die slides out through the linear slide rail, and after the relay is placed, the lower die slides into the corresponding position below the upper die through the linear slide rail. And an angle code wheel is arranged below the detection device body. The setting of the angle code wheel facilitates the movement of the detection device body. And a sealing ring is arranged on the periphery of the lower die. By arranging the sealing ring on the periphery of the lower die, the sealing effect between the upper die and the lower die can be ensured. The lower die is provided with an air inlet hole, and the air inlet hole is connected with the airtight tester. The air tightness tester is connected with an air compressor, and is provided with a pressure regulating valve which is connected with the air compressor. The airtight tester is provided with a pressure sensor, and the pressure sensor is connected with the test tool die. The pressure sensor is used for detecting and calculating the pressure. The detection device body is provided with a display screen 7, the airtight tester is provided with a control board, and the display screen is electrically connected with the control board. The display screen is used for displaying test results or receiving instructions input by an operator.
The air tightness tester is provided with an electromagnetic valve A and an electromagnetic valve D, one end of the electromagnetic valve A is connected with a pressure regulating valve, the other end of the electromagnetic valve A is connected with the electromagnetic valve D, the electromagnetic valve D is connected with a pressure sensor, the pressure sensor is connected with an air inlet hole of the test tool die, and the control panel is respectively connected with the electromagnetic valve A and the electromagnetic valve D. The air tightness tester is provided with an electromagnetic valve B, one end of the electromagnetic valve B is connected with the air tank, the other end of the electromagnetic valve B is connected with an electromagnetic valve D, and the control panel is connected with the electromagnetic valve B. The airtight tester is provided with an electromagnetic valve C, one end of the electromagnetic valve C is connected with an electromagnetic valve D, and the control panel is connected with the electromagnetic valve C. After the test is completed, the compressed air in the mold is exhausted, so that an exhaust time is set, and the solenoid valve C and the solenoid valve D are opened during the exhaust time. The control panel can control the opening or closing of each electromagnetic valve according to the requirement. According to the utility model, through the airtight tester and the test tool die, the dynamic monitoring of air pressure, the quantitative air pressure change when the relay is in large leakage and the air pressure change rate when the relay is in micro leakage can be realized, and the detection of the large leakage and the micro leakage of the relay can be realized. The semi-automatic instrument performs the test by using the pressure drop method, the equivalent air intake, pressure stabilization and detection are performed, the leakage rate, the leakage value and the like of the air-tight tester are obtained by detecting the change of the pressure and the volume of the air-tight tester through a series of sampling, calculation and analysis, and the OK or NG judgment is made according to the data, so that the detection omission is avoided.
The working principle of the utility model is as follows:
and (one) a relay air tightness detection system:
and designing a relay test die according to the specification of the relay type number, inflating the air tank in the screening device after the air source is accessed, closing the electromagnetic valve A after the set air pressure is reached, opening the electromagnetic valve B and the electromagnetic valve D, distributing the air in the air tank to the relay test die, and at the moment, starting the air pressure monitoring by the pressure sensor and drawing an air pressure curve.
The pressure curve can be used for observing that the whole air pressure is stable gradually after instant impact after air pressure is distributed, and then the whole air pressure reaches a constant value after being stable for a period of time. If a large leakage exists, the whole air pressure can not reach the set value. If there is a slight leakage, the curve will be in a downhill shape as a whole. The whole test time of the utility model is shortened from 10 minutes to 10S, thus realizing the rapid detection of large leakage and micro leakage.
Test principle of test fixture mould:
1. the factory compressed air is connected to the inside of the airtight tester;
2. the air tightness tester regulates the pressure of the compressed air of 0.6 to 1.2MPa to 10.5KPA;
3. before testing, the cylinder drives the upper die to be pressed above the product, and a closed cavity is formed between the upper part of the product and the sealing ring.
4. Filling the sealed cavity with air pressure of 10.5KPa for 4 seconds by an air tightness tester, switching off the air filling source, stabilizing the pressure for 4 seconds, and checking whether the leakage amount is within the standard (the standard leakage ratio is 50 pa) after testing for 4 seconds; if yes, the product is qualified; if greater than this value indicates that the product is unacceptable.
5. In practical testing, a product with large leakage is also a product which is filled with less than 10.5KPa in 4 seconds, and is also a defective product.
(III) test principle of the airtight tester:
1. and (3) inflation: compressed air supplied from the air compressor is changed into preset test pressure through the pressure regulating valve, and the test pressure is filled into a sealing cavity between the test die and the test product through the opened electromagnetic valve A and the opened electromagnetic valve D. After the inflation set time has arrived, solenoid valve A and solenoid valve D are closed. During the inflation phase, solenoid valve B and solenoid valve C remain closed at all times.
2. Stabilizing pressure: when the electromagnetic valve D is closed, the compressed air filled into the die has certain fluctuation, and the time for stabilizing the pressure is required to be set so as to enable the compressed air to reach a stable state; in the pressure stabilizing stage, the solenoid valve A, the solenoid valve B, the solenoid valve C and the solenoid valve D are always kept closed. The pressure sensor constantly monitors the pressure of the stabilization process and records the pressure P1 at the completion of the stabilization.
3. And (3) testing: and after the pressure stabilizing time is up, entering a product leakage test stage, and keeping the solenoid valve A, the solenoid valve B, the solenoid valve C and the solenoid valve D closed all the time in the set test time. The pressure sensor continuously detects the change deltap of the calculated pressure and displays the change deltap as a leakage value, and the larger the deltap value is, the larger the leakage of the product is represented.
4. And (3) judging:
(1) Large leakage test: when the test pressure P1 of the product is smaller than the lower limit of the set inflation pressure, the representative air pressure cannot be inflated, the product is leaked greatly, and the instrument judges to test the product NG.
(2) Microleakage test: when the test pressure P1 of the product is larger than the set lower limit of the inflation pressure, the leakage value delta P of the product is larger than the set upper limit of the leakage, the product is slightly leaked, the leakage allowance standard is exceeded, and the instrument judges that the test product NG is tested.
(3) The instrument will determine the product OK only if the test pressure P1> of the product sets the lower intake limit and the leak value is less than the set upper leak limit.
5. And (3) exhausting: after the test is completed, the compressed air in the mold is exhausted, so that an exhaust time is set, and the solenoid valve C and the solenoid valve D are opened during the exhaust time. The pressure sensor constantly monitors the pressure of the exhaust process.
From the above, it can be seen that: judging whether a product is qualified or not, if the pressure is not a set pressure value after the pressure is stabilized, indicating that a large amount of filled compressed air leaks out through the tested product if the pressure is not the set pressure value; it is to be seen whether the amount of leakage is within a specified range of leakage values during the test.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A relay tightness detection device is characterized in that: the air tightness tester is arranged on the detection device body and is connected with the test tool die; the test fixture die comprises an upper die and a lower die, wherein the upper die is arranged above the lower die, the upper die is connected with the detection device body in a lifting manner through a cylinder, and a containing cavity matched with the relay is formed in the upper die and the lower die.
2. The relay tightness detection apparatus according to claim 1, wherein: the periphery of the lower die is provided with a sealing ring, the lower die is provided with an air inlet, and the air inlet is connected with an airtight tester.
3. The relay tightness detection apparatus according to claim 2, wherein: the air tightness tester is connected with an air compressor, and is provided with a pressure regulating valve which is connected with the air compressor.
4. A relay tightness detection apparatus according to claim 3, wherein: the airtight tester is provided with a pressure sensor, and the pressure sensor is connected with the test tool die.
5. The relay tightness detection apparatus according to claim 4, wherein: the detection device body is provided with a display screen, the airtight tester is provided with a control board, and the display screen is electrically connected with the control board.
6. The relay tightness detection apparatus according to claim 5, wherein: the air tightness tester is provided with an electromagnetic valve A and an electromagnetic valve D, one end of the electromagnetic valve A is connected with a pressure regulating valve, the other end of the electromagnetic valve A is connected with the electromagnetic valve D, the electromagnetic valve D is connected with a pressure sensor, the pressure sensor is connected with an air inlet hole of the test tool die, and the control panel is respectively connected with the electromagnetic valve A and the electromagnetic valve D.
7. The relay tightness detection apparatus according to claim 6, wherein: the airtight tester is provided with an electromagnetic valve B, one end of the electromagnetic valve B is connected with the gas tank, and the other end of the electromagnetic valve B is connected with an electromagnetic valve D.
8. The relay tightness detection apparatus according to claim 7, wherein: the airtight tester is provided with an electromagnetic valve C, and one end of the electromagnetic valve C is connected with an electromagnetic valve D.
9. The relay tightness detection apparatus according to claim 1, wherein: the lower die is arranged on a test table surface of the detection device body, the test table surface is provided with a linear slide rail, and the lower die is in sliding connection with the linear slide rail.
10. The relay tightness detection apparatus according to claim 1, wherein: and an angle code wheel is arranged below the detection device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433594.XU CN219178846U (en) | 2023-03-09 | 2023-03-09 | Relay tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433594.XU CN219178846U (en) | 2023-03-09 | 2023-03-09 | Relay tightness detection device |
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| Publication Number | Publication Date |
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| CN219178846U true CN219178846U (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320433594.XU Active CN219178846U (en) | 2023-03-09 | 2023-03-09 | Relay tightness detection device |
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| CN (1) | CN219178846U (en) |
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- 2023-03-09 CN CN202320433594.XU patent/CN219178846U/en active Active
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