CN208672247U - A kind of air-leakage test jig - Google Patents

A kind of air-leakage test jig Download PDF

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Publication number
CN208672247U
CN208672247U CN201821514651.2U CN201821514651U CN208672247U CN 208672247 U CN208672247 U CN 208672247U CN 201821514651 U CN201821514651 U CN 201821514651U CN 208672247 U CN208672247 U CN 208672247U
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China
Prior art keywords
cylinder
hole
helium
sucking holes
air
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CN201821514651.2U
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Chinese (zh)
Inventor
李健明
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Dongguan Jinyuan Hardware Machinery Co Ltd
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Dongguan Jinyuan Hardware Machinery Co Ltd
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Priority to CN201821514651.2U priority Critical patent/CN208672247U/en
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Abstract

The utility model provides a kind of air-leakage test jig, including cylinder, briquetting, bracket, workbench, suction nozzle, reset spring, helium nozzle, and helium mass-spectrometer leak detector, the workbench is equipped with vacuum sucking holes, the aperture end face of the vacuum sucking holes is equipped with flexible glue layer, the suction nozzle is located in the vacuum sucking holes, the vacuum sucking holes include the first hole, and the second hole being connected to first hole, the suction nozzle includes the first cylinder and the second cylinder, the sealed threaded connection of hole wall of the outer peripheral surface of second cylinder and second hole, the lower end of second cylinder is stretched out under the workbench and is connected with the helium collection port of the helium mass-spectrometer leak detector, first cylinder is placed in the hole of second cylinder.Compared with prior art, anti-gas-leak effect is good for the utility model, keeps testing result accurate.

Description

A kind of air-leakage test jig
Technical field
The utility model relates to air-leakage test technical fields more particularly to a kind of air-tightness of shell of sintered products to examine Measurement fixture.
Background technique
It is currently by helium mass-spectrometer leak detector and detection fixture in order to which the shell to sintered products carries out air-leakage test It is detected.A kind of multilayer ceramic substrate air-tightness detection method of the prior art 1 (CN106768684A), including surveyed for detecting The mass-spectrometer leak detector of leak rate is measured, mass-spectrometer leak detector includes vacuum adapter, and vacuum adapter is equipped with vacuum pumping opening, detection method packet It includes following steps: (1) vacuum silicon grease being smeared into a circle around vacuum pumping opening;(2) one piece of centre is laid with above vacuum adapter The vacuum rubber with a thickness of 0.5~5mm with cavity window, adjusts the position of vacuum rubber, makes center and the vacuum of cavity window The center of bleeding point is aligned;(3) vacuum rubber is pressed, makes to fill between vacuum rubber lower surface and vacuum adapter by vacuum silicon grease Divide sealing;(4) multilayer ceramic substrate to be measured with cavity there is into cavity one side or without the multi-layer ceramics to be measured of cavity Any surface of substrate comes into full contact with towards vacuum rubber and with vacuum rubber upper surface, adjusts multilayer ceramic substrate position to be measured, It is directed at multilayer ceramic substrate shape to be measured with the cavity window surrounding of vacuum rubber, to form the internal cavity of a sealing;(5) Internal cavity is evacuated to pressure≤0.01kPa, acts on the outside of substrate by the helium of 236kPa pressure with spray gun The measurement leak rate of multilayer ceramic substrate to be measured is read from mass-spectrometer leak detector.Shortcoming is: utilizing above-mentioned detection method pair When the shells of sintered products carries out air-leakage test, since there are male and fomale(M&F)s for the surfaces of shell of sintered products, vacuum slot is not Can male and fomale(M&F) position to the product tighten and be close to close, will appear gas leakage in this way, cause testing result inaccurate.
Utility model content
A kind of air-leakage test jig that the utility model aim proposes to solve the above-mentioned problems.
It is achieved through the following technical solutions above-mentioned purpose:
The utility model provides a kind of air-leakage test jig, including cylinder, briquetting, bracket, workbench, suction nozzle, reset Spring, helium nozzle and helium mass-spectrometer leak detector, the workbench are equipped with vacuum sucking holes, the orifice end of the vacuum sucking holes Face is equipped with flexible glue layer, and the suction nozzle is located in the vacuum sucking holes, and the vacuum sucking holes are including the first hole and with described the One hole connection the second hole, the suction nozzle include the first cylinder and the second cylinder, the outer peripheral surface of second cylinder with it is described The sealed threaded connection of the hole wall in the second hole, the lower end of second cylinder stretch out under the workbench and with the helium mass spectrum The helium collection port of leak detector is connected, and first cylinder is placed in the hole of second cylinder, first cylinder with it is described Second cylinder is slidably connected, and the first sealing ring is equipped between the outer peripheral surface of first cylinder and the hole wall of second cylinder, One end of the reset spring is fixedly connected with the hole wall of second cylinder, the other end of the reset spring and described first The lower end of cylinder is fixedly connected, and the upper surface of first cylinder is equipped with flexible glue circle, and first cylinder stretches out the workbench On, the cylinder is rack-mount, and the briquetting is fixedly connected on the piston rod of the cylinder, and the briquetting is located at described The surface of vacuum sucking holes.
Further, the flexible glue layer is equipped with through-hole, and the through-hole is connected to the vacuum sucking holes.
Further, the through-hole and the vacuum sucking holes are concentric.
It further, further include helium holding vessel, throttle valve, floor push, tracheae and solenoid valve, the helium storage Tank is connected by tracheae and the solenoid valve, and the solenoid valve is connected by the tracheae and the throttle valve, the throttle valve It is connected by tracheae and the helium nozzle, the solenoid valve and the floor push are electrically connected.
It further, further include fixed frame, the fixed frame is fixedly connected on the table, and the helium nozzle is mounted on On the fixed frame.
Further, the fixed frame is Universal fixed support.
Further, the material of the briquetting is flexible glue material.
The beneficial effects of the utility model are: product to be measured is placed on the vacuum sucking holes of workbench, driven by cylinder Dynamic pressure block is pressed downward until fixation the shell of product to be measured, during pushing the shell of product to be measured, production to be measured The case surface of product and flexible glue level and face come into full contact with, while the upper surface of the case surface of product to be measured and the first cylinder Flexible glue circle face and face come into full contact with and move down the first cylinder.Double-layer seal chamber is constituted in this way, and first layer seal chamber is The seal chamber that the case surface and flexible glue circle of product to be measured, the first cylinder and the second cylinder are constituted, second layer seal chamber are to be measured The seal chamber that the case surface and flexible glue layer of product, vacuum sucking holes and suction nozzle are constituted, and first layer seal chamber is close in the second layer It seals intracavitary.When starting helium mass-spectrometer leak detector carries out vacuumizing pumping, if first layer seal chamber leaks air, there are also the second layers Seal chamber seal protection.Compared with prior art, anti-gas-leak effect is good, keeps testing result accurate.It can apply and there is concave-convex table The air-leakage test of the shell of the sintered products in face.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model;
Fig. 2 is the diagrammatic cross-section of the workbench of the utility model, vacuum sucking holes, suction nozzle and flexible glue layer;
Fig. 3 is workbench, the briquetting, helium nozzle, vacuum when the utility model detects the shell of product to be measured The locations of structures diagrammatic cross-section of the shell of sucker, suction nozzle and flexible glue layer and product.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing and specific embodiment:
Shown in Fig. 1 to Fig. 3, the utility model provides a kind of air-leakage test jig, including cylinder 1, briquetting 2, bracket 3, Workbench 4, suction nozzle, reset spring 6, helium nozzle 7 and helium mass-spectrometer leak detector 8, the workbench 4 are equipped with vacuum sucking holes 41, the aperture end face of the vacuum sucking holes 41 is equipped with flexible glue layer 9, and the suction nozzle is located in the vacuum sucking holes 41, described true Suction hole 41 includes the first hole 411 and the second hole (not shown go out) be connected to first hole, and the suction nozzle includes first Cylinder 51 and the second cylinder 52, the sealed threaded connection of hole wall of the outer peripheral surface of second cylinder 52 and second hole, The lower end of second cylinder 52 is stretched out under the workbench 4 and is connected with the helium collection port of the helium mass-spectrometer leak detector 8, First cylinder 51 is placed in the hole of second cylinder 52, and first cylinder 51 connects with second cylinder 52 sliding It connects, is equipped between the outer peripheral surface of first cylinder 51 and the hole wall of second cylinder 52 first sealing ring (not shown go out), One end of the reset spring 6 is fixedly connected with the hole wall of second cylinder 52, the other end of the reset spring 6 with it is described The lower end of first cylinder 51 is fixedly connected, and the upper surface of first cylinder 51 is equipped with flexible glue circle 511, and first cylinder 51 is stretched Out on the workbench 4, the cylinder 1 is mounted on bracket 3, and the briquetting 2 is fixedly connected on the piston rod of the cylinder 1 On, the briquetting 2 is located at the surface of the vacuum sucking holes 41, and the flexible glue layer 9 is equipped with through-hole 91, the through-hole 91 with it is described Vacuum sucking holes 41 are connected to, and the through-hole 91 and the vacuum sucking holes 41 are concentric.The beneficial effect is that: by the shell A of product to be measured It is placed in the hole face of vacuum sucking holes 41 of workbench 4, drives briquetting 2 to be pressed downward the shell A of product to be measured by cylinder 1 Until fixation, during pushing the shell A of product to be measured, the surface shell A and 9 face of flexible glue layer and face of product to be measured Come into full contact with, while 511 face of upper surface flexible glue circle of the surface shell A of product to be measured and the first cylinder 51 and face is abundant It contacts and moves down the first cylinder 51.Double-layer seal chamber is constituted in this way, and first layer seal chamber is the shell A table of product to be measured The seal chamber that face and flexible glue circle 511, the first cylinder 51 and the second cylinder 52 are constituted, second layer seal chamber are the shell of product to be measured The seal chamber that the surface A and flexible glue layer 9, vacuum sucking holes 41 and suction nozzle are constituted, and first layer seal chamber is in second layer seal chamber. When starting helium mass-spectrometer leak detector 8 carries out vacuumizing pumping, if first layer seal chamber leaks air, there are also second layer sealings Chamber seal protection.
It further include helium holding vessel 10, throttle valve (not shown go out), floor push (not shown go out), tracheae 101 and electricity Magnet valve 102, the helium holding vessel 10 are connected by tracheae 101 and the solenoid valve 102, and the solenoid valve 102 passes through described Tracheae 101 and the throttle valve are connected, and the throttle valve is connected by tracheae 101 and the helium nozzle 7, the solenoid valve 102 are electrically connected with the floor push.By above structure, the output and artificial control to helium are realized.
It further include fixed frame 71, the fixed frame 71 is fixedly connected on workbench 4, and the helium nozzle 7 is mounted on institute It states on fixed frame 71, the fixed frame 71 is Universal fixed support.By above structure, according to the outer of different shape sintered products Shell can adjust the position of helium nozzle 7, keep testing result more acurrate.
The material of the briquetting 2 is flexible glue material.By above structure, will not the shell A to product to be measured leave pressure Trace.
Above are merely preferred embodiments of the utility model, the protection scope of the utility model is not limited merely to above-mentioned Embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.

Claims (7)

1. a kind of air-leakage test jig, which is characterized in that including cylinder, briquetting, bracket, workbench, suction nozzle, reset spring, Helium nozzle and helium mass-spectrometer leak detector, the workbench are equipped with vacuum sucking holes, set on the aperture end face of the vacuum sucking holes There is flexible glue layer, the suction nozzle is located in the vacuum sucking holes, and the vacuum sucking holes include the first hole and connect with first hole The second logical hole, the suction nozzle include the first cylinder and the second cylinder, the outer peripheral surface of second cylinder and second hole The sealed threaded connection of hole wall, the lower end of second cylinder stretch out under the workbench and with the helium mass-spectrometer leak detector Helium collection port connect, first cylinder is placed in the hole of second cylinder, first cylinder with described second Body is slidably connected, and the first sealing ring is equipped between the outer peripheral surface of first cylinder and the hole wall of second cylinder, described multiple One end of position spring is fixedly connected with the hole wall of second cylinder, the other end of the reset spring and first cylinder Lower end is fixedly connected, and the upper surface of first cylinder is equipped with flexible glue circle, and first cylinder stretches out on the workbench, described Cylinder is rack-mount, and the briquetting is fixedly connected on the piston rod of the cylinder, and the briquetting is located at vacuum suction The surface in hole.
2. a kind of air-leakage test jig according to claim 1, it is characterised in that: the flexible glue layer is equipped with through-hole, institute Through-hole is stated to be connected to the vacuum sucking holes.
3. a kind of air-leakage test jig according to claim 2, it is characterised in that: the through-hole and the vacuum sucking holes With one heart.
4. a kind of air-leakage test jig according to claim 1, it is characterised in that: further include helium holding vessel, throttling Valve, floor push, tracheae and solenoid valve, the helium holding vessel are connected by tracheae and the solenoid valve, the solenoid valve It is connected by the tracheae and the throttle valve, the throttle valve is connected by tracheae and the helium nozzle, the solenoid valve It is electrically connected with the floor push.
5. a kind of air-leakage test jig according to claim 1, it is characterised in that: it further include fixed frame, the fixation Frame is fixedly connected on the table, and the helium nozzle is mounted on the fixed frame.
6. a kind of air-leakage test jig according to claim 5, it is characterised in that: the fixed frame is universal fixed branch Frame.
7. a kind of air-leakage test jig according to claim 1, it is characterised in that: the material of the briquetting is flexible glue material Material.
CN201821514651.2U 2018-09-17 2018-09-17 A kind of air-leakage test jig Active CN208672247U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821514651.2U CN208672247U (en) 2018-09-17 2018-09-17 A kind of air-leakage test jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821514651.2U CN208672247U (en) 2018-09-17 2018-09-17 A kind of air-leakage test jig

Publications (1)

Publication Number Publication Date
CN208672247U true CN208672247U (en) 2019-03-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111595531A (en) * 2020-05-19 2020-08-28 盐城工业职业技术学院 Air tightness detection method for non-cavity or multi-cavity multilayer ceramic substrate
CN113390572A (en) * 2020-03-12 2021-09-14 Oppo(重庆)智能科技有限公司 Airtight maintenance method and maintenance device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390572A (en) * 2020-03-12 2021-09-14 Oppo(重庆)智能科技有限公司 Airtight maintenance method and maintenance device
CN111595531A (en) * 2020-05-19 2020-08-28 盐城工业职业技术学院 Air tightness detection method for non-cavity or multi-cavity multilayer ceramic substrate

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