CN114838883A - Instrument testing method and instrument testing device - Google Patents

Instrument testing method and instrument testing device Download PDF

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Publication number
CN114838883A
CN114838883A CN202210630919.3A CN202210630919A CN114838883A CN 114838883 A CN114838883 A CN 114838883A CN 202210630919 A CN202210630919 A CN 202210630919A CN 114838883 A CN114838883 A CN 114838883A
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China
Prior art keywords
instrument
module
detection
pressure
detected
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CN202210630919.3A
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Chinese (zh)
Inventor
熊颖
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Suzhou Meiczech Electronic Technology Co ltd
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Suzhou Meiczech Electronic Technology Co ltd
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Priority to CN202210630919.3A priority Critical patent/CN114838883A/en
Publication of CN114838883A publication Critical patent/CN114838883A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/361—Processing or control devices therefor, e.g. escort memory
    • B07C5/362—Separating or distributor mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention relates to the technical field of instrument detection devices, in particular to an instrument testing method and a testing device thereof. It mainly does not possess position adjustment fixed function to current detection device, influences the gas tightness that the air pump was carried, can not directly concentrate the problem of collecting with nonconforming instrument, proposes following technical scheme: the utility model provides an instrument and meter testing arrangement, includes the mesa and waits to detect the instrument, the mount is installed at the top of mesa, the controller is installed at the top of mount, the ground step of mount is provided with first cylinder. The test device has the advantages of compact and novel structure, adaptability to fixing positions of workpieces with different sizes and models, improvement of flexibility and universality of use of the device, automatic promotion and collection of unqualified workpieces, reduction of workload of manual judgment and classification collection, simple and complete test method, more convenient and faster detection, suitability for use in an efficient detection production line, high practicability and main application in air tightness detection of instruments.

Description

Instrument testing method and instrument testing device
Technical Field
The invention relates to the technical field of instrument detection devices, in particular to an instrument testing method and a testing device thereof.
Background
An instrument is an instrument or equipment for detecting, measuring, observing, and calculating various physical quantities, material components, physical parameters, and the like. After the processing of the instruments is finished, the instruments need to be checked to ensure that the instruments meet the use standard, the detection of part of the instruments also comprises the detection of air tightness and water resistance, and the instruments meeting the air tightness standard can meet the water resistance requirement; when the existing waterproof test device of the instrument and meter is used for waterproof test, the waterproof test device generally adopts a mode of soaking in water and stamping into the instrument, part of bubbles are carried instantly by the instrument such as water, test judgment is influenced when the instrument is subsequently popped out, and the instrument and meter are required to be dried after sampling inspection;
in the scheme, an equipment butt joint cover connected with the instrument is combined, and a gas pressure sensor reads the change of the air pressure in the equipment butt joint cover after the air pressure in a test cavity is stable, so that the air tightness of a product is considered, the detection efficiency is effectively improved, and the detection accuracy of the waterproof air tightness is improved; however, the position of the instrument to be detected cannot be fixed in the device, so that the position is shifted during detection, the air tightness of the air pump conveying is affected, the accuracy of detection results is affected, whether the detected instrument is qualified or not can not be classified and collected, the unqualified instrument needs to be picked manually, and the manual workload is increased; in view of this, we propose a method and apparatus for testing instruments.
Disclosure of Invention
The invention aims to provide an instrument testing method and a testing device thereof, aiming at the problems that the existing detection equipment in the background technology does not have the position adjusting and fixing function, so that the position of an instrument to be detected is displaced, the air tightness of the air pump conveying is influenced, unqualified instruments cannot be directly collected in a centralized manner, and the like.
The technical scheme of the invention is as follows: an instrument testing device comprises a table top and an instrument to be detected, wherein a fixed frame is installed at the top of the table top, a controller is installed at the top of the fixed frame, a first air cylinder is arranged on the fixed frame, the output end of the first air cylinder is connected with a lifting plate, an air pump is installed on the lifting plate, the output end of the air pump is connected with a sealing cover, a pressure sensor is further installed in the sealing cover, a clamping plate II is installed on the table top in a sliding mode, and a pushing mechanism is arranged on one side of the instrument to be detected;
pushing mechanism includes driving motor, driving motor's output is connected with the threaded rod, the outer lane of the outer lane screw thread cover of threaded rod is equipped with the guide bar, the outer lane of thread cover still is connected with splint one, splint one is a plurality of, and is connected with the connecting block between a plurality of splint one, inlay on splint one and establish and install the liftout plate, one side of liftout plate is connected with the third cylinder that sets up at a splint back.
Preferably, a lifting port is formed in the table board, the second clamping plate penetrates through the lifting port, a fourth cylinder is detachably connected to the bottom of the second clamping plate, and the fourth cylinder is installed with the bottom of the table board through a supporting frame.
Preferably, a guide groove is formed in one side of the top of the table board, the guide rod is connected with the inner wall of the guide groove in a sliding mode, and the driving motor is detachably connected with the top of the table board.
Preferably, the bottom of lifter plate still installs the second cylinder, the output of second cylinder is connected with the push pedal, install signal transmitter on the push pedal, signal transmitter is connected with pressure sensor's input.
Preferably, the output end of the air pump is connected with an air hose, and the other end of the air hose is hermetically connected with the top of the closed cover.
Preferably, one side of the table top is connected with a first material guide plate, a collecting basket is arranged below the first material guide plate, a second material guide plate is arranged on one side of the front face of the table top, and a waste basket is arranged below the second material guide plate.
The instrument testing method comprises a testing computing system, wherein the output end of the testing computing system is connected with a pressure detection module and a detection starting module, the output end of the pressure detection module is connected with a data acquisition module, the output end of the data acquisition module is connected with a data transmission module, the output end of the data transmission module is connected with a pressure difference computing module, the output end of the pressure difference computing module is connected with a judgment module, and the judgment module is connected with a pushing blanking module;
the test method comprises the following steps:
the method comprises the following steps: fixedly placing an instrument to be detected on a detection table top of a detection device, starting a detection starting module by starting a test computing system, and sending a detection instruction by the detection starting module;
step two: the detection starting module is used for filling gas with certain pressure into the inner cavity of the instrument to be detected, after the set pressure is reached, the gas path between the instrument to be detected and the gas pump unit is cut off, the data acquisition module, the data transmission module and the pressure difference calculation module are used for calculating the pressure in the inner cavity of the instrument to be detected, and the calculation result is judged by the judgment module;
step three: and if the calculation result of the instrument to be detected does not meet the specified requirements, the blanking module is pushed to intensively blank and collect the waste instruments.
Preferably, the detection starting module is connected with a first air cylinder unit, a second air cylinder unit and an air pump unit, the first air cylinder unit, the second air cylinder unit and the air pump unit are used for receiving a detection instruction of the detection starting module, and the air pump unit comprises a pressure regulating valve.
Preferably, the data acquisition module acquires multiple sets of data, and the calculation formula of the pressure difference calculation module is as follows: and (3) pressure difference = a second real-time pressure value-a first real-time pressure value, wherein the gas in the second step is any one of compressed air or nitrogen.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the invention, the positions of two ends of an instrument to be detected are clamped through the second clamping plate and the pushing mechanism, the threaded sleeve is pushed along the direction of the guide groove by starting the driving motor, so that the first clamping plate moves close to one side of the instrument to be detected, the ejector plate, the third cylinder and the second clamping plate are integrated to fix the positions of the two ends of the instrument to be detected, the instrument to be detected is suitable for detection of instruments and meters of different sizes and models, the universality of a detection device is improved, the instrument cannot be positioned due to the fixed position, the air tightness of gas delivered by an air pump is improved, air pressure data in the instrument to be detected is detected and transmitted through the pressure sensor, and the operation of the detection device is controlled through the controller;
2. in the test method, the air tightness of the instrument to be detected after the position is fixed is detected by a detection starting module, the air is conveyed into the cavity of the instrument to be detected by starting an air pump unit, the instrument to be detected and an air path of an air source are cut off after the set pressure is reached, the pressure tends to be stable for a certain time, a data acquisition module during the pressure stabilization period preferentially judges whether the workpiece has large leakage according to the leakage condition, if the workpiece has large leakage, the data display is carried out, if the workpiece does not have large leakage, the detection stage is carried out, real-time data is acquired by the data acquisition module, second real-time data is acquired after 20 minutes, the acquired data is transmitted to a pressure difference calculation module by the data transmission module, the pressure difference calculation module is combined with the two acquired real-time data for calculation to obtain a calculation result, the calculation result is uploaded to a judgment module, and the judgment module receives the pressure difference value exceeding the standard range, judging that the air tightness of the instrument to be detected is unqualified, starting the pushing blanking module, and carrying out centralized blanking collection on the unqualified instrument to be detected by pushing the blanking module, wherein the qualified instrument is collected manually, so that the detection instrument is separately collected, and the workload of manually distinguishing the unqualified workpiece is reduced;
3. in conclusion, the testing device disclosed by the invention is compact and novel in structure, is suitable for fixing positions of workpieces with different sizes and models, improves the flexibility and the universality of the use of the device, automatically pushes and collects unqualified workpieces, reduces the workload of manual judgment and classification collection, is simple and complete in testing method, is more convenient and faster to detect, is suitable for being used in an efficient detection production line, and is high in practicability.
Drawings
FIG. 1 is a schematic view of an instrument testing apparatus;
FIG. 2 is a schematic view of the pushing mechanism of FIG. 1;
FIG. 3 is a schematic structural view of the second clamping plate in FIG. 1;
FIG. 4 is a functional block diagram of a test system in a method of instrumentation testing.
Reference numerals: 1. a table top; 2. an instrument to be detected; 3. a fixed mount; 4. a lifting plate; 5. an air pump; 6. a second cylinder; 7. pushing the plate; 8. a hermetic enclosure; 9. a pressure sensor; 10. a pushing mechanism; 101. a drive motor; 102. a threaded sleeve; 103. a guide bar; 104. a threaded rod; 105. a first clamping plate; 106. connecting blocks; 107. ejecting the plate; 108. a third cylinder; 109. a guide groove; 11. a second clamping plate; 12. a fourth cylinder; 13. a first material guide plate; 14. a collection basket; 15. a second material guide plate; 16. a waste basket; 17. a controller; 18. a first cylinder.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in FIGS. 1-4, the instrument testing device provided by the invention comprises a table top 1 and an instrument 2 to be tested, wherein a fixed frame 3 is installed at the top of the table top 1, a controller 17 is installed at the top of the fixed frame 3, a first air cylinder 18 is arranged on the fixed frame 3, the output end of the first air cylinder 18 is connected with a lifting plate 4, an air pump 5 is installed on the lifting plate 4, the output end of the air pump 5 is connected with a closed cover 8, the output end of the air pump 5 is connected with an air hose, the other end of the air hose is hermetically connected with the top of the closed cover 8, a pressure sensor 9 is also installed in the closed cover 8, a second air cylinder 6 is also installed at the bottom of the lifting plate 4, the output end of the second air cylinder 6 is connected with a push plate 7, a signal emitter is installed on the push plate 7 and is connected with the input end of the pressure sensor 9, the output end of the signal emitter is connected with the input end of the controller 17 through a radio signal, a second clamping plate 11 is slidably mounted on the table top 1, a lifting port is formed in the table top 1, the second clamping plate 11 penetrates through the lifting port, a fourth cylinder 12 is detachably connected to the bottom of the second clamping plate 11, the fourth cylinder 12 and the bottom of the table top 1 are mounted through a supporting frame, the second clamping plate 11 slides along the inner wall of the through port, and a pushing mechanism 10 is arranged on one side of the instrument 2 to be detected;
pushing mechanism 10 includes driving motor 101, driving motor 101 passes through the bolt with the top of mesa 1 and can dismantle the connection, driving motor 101's output is connected with threaded rod 104, the outer lane of threaded rod 104 outer lane thread bush is equipped with thread bush 102 is connected with guide bar 103, guide way 109 has been seted up to top one side of mesa 1, the inner wall sliding connection of guide bar 103 and guide way 109, the perpendicular cross-section of guide way 109 is "perpendicular" type structure, thread bush 102's outer lane still is connected with splint 105, splint 105 are a plurality of, and be connected with connecting block 106 between a plurality of splint 105, it installs liftout plate 107 to inlay on splint 105, one side of liftout plate 107 is connected with the third cylinder 108 that sets up at the splint 105 back.
In the embodiment, when the instrument 2 to be detected is detected, the instrument 2 to be detected is placed on one side of the clamping plate two 11, one end of the instrument 2 to be detected is abutted against one side wall of the clamping plate two 11, the controller 17 controls the pushing mechanism 10 to be started, so that the output end of the driving motor 101 rotates the threaded rod 104, the threaded sleeve 102 on the outer ring of the threaded rod 104 horizontally moves along the guide of the bottom guide rod 103 and the guide groove 109, the clamping plate one 105 and the connecting block 106 are moved through the movement of the threaded sleeve 102, so that the clamping plate one 105 is abutted against the other end of the instrument 2 to be detected, when the instrument 2 to be detected is too small in size, the third cylinder 108 is started, so that the ejection plate 107 is pushed along the clamping plate one 105, one side of the ejection plate 107 is abutted against one end of the instrument 2 to be detected, so that the position of the instrument 2 to be detected on the table board 1 is clamped and fixed, the first cylinder 18 and the second cylinder 6 are started through the controller 17, the first cylinder 18 pushes the lifting plate 4 downwards, after the sealing cover 8 is positioned at the top of the instrument 2 to be detected, the second cylinder 6 is started, so that the sealing cover 8 corresponds to a detection air inlet of the instrument 2 to be detected, the instrument 2 to be detected is inflated through the correspondence between the sealing cover 8 and the air inlet and the start of the air pump 5, the instrument 2 to be detected is detected, one of the instruments 2 to be detected is unqualified, the controller 17 starts the corresponding third cylinder 108 and the fourth cylinder 12, the output end of the fourth cylinder 12 is contracted downwards, so that the clamp plate two 11 is accommodated in the through hole, the output end of the third cylinder 108 pushes the ejecting plate 107, so that the ejecting plate 107 slides the unqualified instrument 2 to be detected into the waste basket 16 along the guide plate two 15, the instruments 2 to be detected which are remained on the table board 1 are qualified products, after the pushing mechanism 10 is reset, the pushing mechanism is manually pushed, so that the instrument 2 to be tested falls along the guide plate one 13 into the collecting basket 14.
Example two
As shown in fig. 1-4, compared with the first embodiment, the apparatus for testing instruments and meters provided by the present invention further includes a table top 1 and an instrument 2 to be tested, a fixed frame 3 is installed on the top of the table top 1, a controller 17 is installed on the top of the fixed frame 3, a first air cylinder 18 is installed on the fixed frame 3, an output end of the first air cylinder 18 is connected with a lifting plate 4, an air pump 5 is installed on the lifting plate 4, an output end of the air pump 5 is connected with a closed cover 8, a pressure sensor 9 is further installed in the closed cover 8, a second clamping plate 11 is slidably installed on the table top 1, and a pushing mechanism 10 is installed on one side of the instrument 2 to be tested; one side of the table top 1 is connected with a first material guide plate 13, a collecting basket 14 is arranged below the first material guide plate 13, the first material guide plate 13 is an arc-shaped plate, one side of the front face of the table top 1 is provided with a second material guide plate 15, the second material guide plate 15 is arranged in an inclined mode, and a waste basket 16 is arranged below the second material guide plate 15.
In this embodiment, unqualified treat instrument 2 and retrieve through the output of fourth cylinder 12, make splint two 11 accomodate in running through the mouth, the start output through third cylinder 108 promotes, make ejector plate 107 slide unqualified treat instrument along two 15 of stock guides, concentrate and collect in waste material basket 16, it is then qualified instrument to remain treat instrument 2 on mesa 1, qualified treat instrument 2 and drop to collect in collecting basket 14 through artifical promotion along stock guide one 13, reduce the artifical work load that distinguishes to treat that instrument 2 is qualified or not.
EXAMPLE III
As shown in fig. 1-4, compared with the first embodiment or the second embodiment, the present invention further includes a test calculation system, an output end of the test calculation system is connected to a pressure detection module and a detection start module, the detection start module is connected to a first air cylinder unit, a second air cylinder unit and an air pump unit, the first air cylinder unit, the second air cylinder unit and the air pump unit are used for receiving a detection instruction of the detection start module, the air pump unit includes a pressure regulating valve, an output end of the pressure detection module is connected to a data acquisition module, the data acquisition module acquires multiple sets of data, and a calculation formula of the pressure difference calculation module is as follows: the pressure difference = a second real-time pressure value-a first real-time pressure value, the gas in the second step is any one of compressed air or nitrogen, the output end of the data acquisition module is connected with a data transmission module, the output end of the data transmission module is connected with a pressure difference calculation module, the output end of the pressure difference calculation module is connected with a judgment module, a qualified pressure difference range value of the instrument to be detected is preset in the judgment module, and the judgment module is connected with a pushing blanking module;
the test method comprises the following steps:
the method comprises the following steps: fixedly placing an instrument to be detected on a detection table top of a detection device, starting a detection starting module by starting a test computing system, and sending a detection instruction by the detection starting module;
step two: the detection starting module is used for filling gas with certain pressure into the inner cavity of the instrument to be detected, after the set pressure is reached, the gas path between the instrument to be detected and the gas pump unit is cut off, the data acquisition module, the data transmission module and the pressure difference calculation module are used for calculating the pressure in the inner cavity of the instrument to be detected, and the calculation result is judged by the judgment module;
step three: and if the calculation result of the instrument to be detected does not meet the specified requirements, the blanking module is pushed to intensively blank and collect the waste instruments.
In the embodiment, the air tightness detection is carried out on the instrument to be detected after the position is fixed through the detection starting module, the air is conveyed into the cavity of the instrument to be detected through the starting of the air pump unit, after the set pressure is reached, the instrument to be detected and the air path of the air source are cut off, the pressure tends to be stable for a certain time, the data acquisition module during the pressure stabilization period preferentially judges whether the workpiece has large leakage according to the leakage condition, if the workpiece has large leakage, the data display is carried out, if the workpiece does not have large leakage, the detection stage is carried out, the data acquisition module acquires real-time data, the second real-time data is acquired after 20 minutes, the acquired data is transmitted to the pressure difference calculation module through the data transmission module, the pressure difference calculation module combines the two acquired real-time data to calculate a calculation result, the calculation result is uploaded to the judgment module, and the judgment module receives the pressure difference value exceeding the standard range, and judging that the air tightness of the instrument to be detected is unqualified, starting the pushing blanking module, intensively blanking and collecting the unqualified instrument to be detected by pushing the blanking module, and manually collecting the qualified instrument to achieve the separate collection of the detecting instrument, thereby reducing the workload of manually distinguishing the unqualified workpiece.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.

Claims (9)

1. The utility model provides an instrument and meter testing arrangement, includes mesa (1) and treats instrument (2) of examining, its characterized in that: a fixing frame (3) is installed at the top of the table top (1), a controller (17) is installed at the top of the fixing frame (3), a first air cylinder (18) is arranged on the fixing frame (3), the output end of the first air cylinder (18) is connected with a lifting plate (4), an air pump (5) is installed on the lifting plate (4), the output end of the air pump (5) is connected with a closed cover (8), a pressure sensor (9) is further installed in the closed cover (8), a clamping plate II (11) is installed on the table top (1) in a sliding mode, and a pushing mechanism (10) is arranged on one side of the instrument (2) to be detected;
pushing mechanism (10) includes driving motor (101), the output of driving motor (101) is connected with threaded rod (104), the outer lane of the outer lane screw thread cover of threaded rod (104) is equipped with screw thread bush (102) and is connected with guide bar (103), the outer lane of screw thread bush (102) still is connected with splint (105), splint (105) are a plurality of, and are connected with connecting block (106) between a plurality of splint (105), inlay on splint (105) and establish and install liftout plate (107), one side of liftout plate (107) is connected with third cylinder (108) that set up at splint (105) the back.
2. The instrument testing device of claim 1, wherein a lifting port is formed in the table top (1), the second clamping plate (11) penetrates through the lifting port, a fourth cylinder (12) is detachably connected to the bottom of the second clamping plate (11), and the fourth cylinder (12) and the bottom of the table top (1) are installed through a supporting frame.
3. The instrument and meter testing device according to claim 1, wherein a guide groove (109) is formed in one side of the top of the table top (1), the guide rod (103) is slidably connected with the inner wall of the guide groove (109), and the driving motor (101) is detachably connected with the top of the table top (1).
4. The instrument and meter testing device according to claim 1, wherein a second cylinder (6) is further installed at the bottom of the lifting plate (4), the output end of the second cylinder (6) is connected with a push plate (7), a signal emitter is installed on the push plate (7), and the signal emitter is connected with the input end of the pressure sensor (9).
5. The instrument and meter testing device according to claim 4, wherein an output end of the air pump (5) is connected with an air hose, and the other end of the air hose is hermetically connected with the top of the closed cover (8).
6. The instrument testing device according to claim 1, wherein a first material guiding plate (13) is connected to one side of the table top (1), a collecting basket (14) is arranged below the first material guiding plate (13), a second material guiding plate (15) is arranged on one side of the front surface of the table top (1), and a waste basket (16) is arranged below the second material guiding plate (15).
7. The instrument testing method is characterized by comprising a testing computing system, wherein the output end of the testing computing system is connected with a pressure detection module and a detection starting module, the output end of the pressure detection module is connected with a data acquisition module, the output end of the data acquisition module is connected with a data transmission module, the output end of the data transmission module is connected with a pressure difference computing module, the output end of the pressure difference computing module is connected with a judgment module, and the judgment module is connected with a pushing blanking module;
the test method comprises the following steps:
the method comprises the following steps: fixedly placing an instrument to be detected on a detection table top of a detection device, starting a detection starting module by starting a test computing system, and sending a detection instruction by the detection starting module;
step two: the detection starting module is used for filling gas with certain pressure into the inner cavity of the instrument to be detected, after the set pressure is reached, the gas path between the instrument to be detected and the gas pump unit is cut off, the data acquisition module, the data transmission module and the pressure difference calculation module are used for calculating the pressure in the inner cavity of the instrument to be detected, and the calculation result is judged by the judgment module;
step three: and if the calculation result of the instrument to be detected does not meet the specified requirements, the blanking module is pushed to intensively blank and collect the waste instruments.
8. The instrument and meter testing method according to claim 7, wherein the detection starting module is connected with a first air cylinder unit, a second air cylinder unit and an air pump unit, the first air cylinder unit, the second air cylinder unit and the air pump unit are used for receiving a detection instruction of the detection starting module, and the air pump unit comprises a pressure regulating valve.
9. The method as claimed in claim 7, wherein the data acquisition module acquires a plurality of sets of data, and the differential pressure calculation module has a calculation formula: and (3) pressure difference = a second real-time pressure value-a first real-time pressure value, wherein the gas in the second step is any one of compressed air or nitrogen.
CN202210630919.3A 2022-06-06 2022-06-06 Instrument testing method and instrument testing device Withdrawn CN114838883A (en)

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Application Number Priority Date Filing Date Title
CN202210630919.3A CN114838883A (en) 2022-06-06 2022-06-06 Instrument testing method and instrument testing device

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Application Number Priority Date Filing Date Title
CN202210630919.3A CN114838883A (en) 2022-06-06 2022-06-06 Instrument testing method and instrument testing device

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CN114838883A true CN114838883A (en) 2022-08-02

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CN202210630919.3A Withdrawn CN114838883A (en) 2022-06-06 2022-06-06 Instrument testing method and instrument testing device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116475083A (en) * 2023-01-19 2023-07-25 杭州德创能源设备有限公司 Bubble vision detection mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116475083A (en) * 2023-01-19 2023-07-25 杭州德创能源设备有限公司 Bubble vision detection mechanism
CN116475083B (en) * 2023-01-19 2024-06-11 杭州德创能源设备有限公司 Bubble vision detection mechanism

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Application publication date: 20220802