CN208223743U - A kind of leakage test tooling for carrying out batch and checking product cavity leakproofness - Google Patents

Abstract

The utility model discloses one kind can carry out the leakage test tooling that batch checks product cavity leakproofness, including casing (4), one end of casing (4) is connected with connector (3), the axis direction of casing (4) is provided with the more connecting tubes (5) being connected with casing (4), connecting tube (5) is connected with loop bar (1), and loop bar (1) upper end is threadedly coupled with nut (2).The utility model can carry out the leakage test that batch checks product cavity leakproofness, by assembling more than one piece product simultaneously, guarantee that chamber pressure evenly distributes, and compressed product by nut (2), efficient batch checks whether product leakage situation reaches the requirement of product sealing.

Description

A kind of leakage test tooling for carrying out batch and checking product cavity leakproofness

Technical field

The utility model relates to one kind can carry out the leakage test tooling that batch checks product cavity leakproofness, particular for Inner cavity needs to seal but directly can not increase connector plug in inner cavity, while product can't be put into liquid and checked The product of leakproofness.

Background technique

As shown in Figure 1, for the test specimen product of test need to be sealed, part is assembled to refill after sealing ring it is fitted on In a kind of inner cavity tubular part, it is desirable that sealing is kept after assembly, and has been surface-treated before each component assembly, meanwhile, it should There is conducting wire soldering structure in assembly, can not directly increase the connector or plug of leakage test in one end of the assembly, cause Whether when the assembly is directly assembled to be sealed test in product assembly, being not easy to find after product leakage is that the assembly is let out Leakage, also, current seal tightness test is single-piece progress, causes a large amount of wastes of human and material resources, time, makes the period of product Extend, cost improves.

Summary of the invention

The utility model is intended to provide a kind of leakage test tooling that can be carried out batch and check product cavity leakproofness, high Effect, the requirement of the inspection product cavity sealing performance of high quality.

The utility model is achieved by following technical solution:

A kind of leakage test tooling for carrying out batch and checking product cavity leakproofness, including casing, one end of casing with Connector is connected, and the axis direction of casing is provided with the more connecting tubes being connected with casing, and connecting tube is connected with loop bar, set Bar upper end is threadedly coupled with nut；

Described sleeve pipe is cavity straight tube closed at one end, and cavity is connected to connecting tube；

The loop bar is the cylindrical body that upper surface is provided with ladder-like blind hole, is provided with air inlet on the circumferential surface of cylindrical body, is covered Bar upper surface tapping is provided with gasket；

The nut is provided with stepped throughhole along its axial direction, and stepped throughhole includes upper hole and lower opening, and the aperture in upper hole is small In lower opening, the aperture of lower opening is greater than the outer diameter of product, is provided with ring packing cushion rubber on the interface of upper hole and lower opening.

Two one group of the connecting tube lives apart in the vertical line both ends of casing axis, and is spacedly distributed between group and group.

It is parallel to each other between the loop bar.

The internal diameter of the ring packing cushion rubber is equal to the aperture in upper hole, and outer diameter is equal to the aperture of lower opening.

The loop bar upper surface is provided with the annular groove coaxial with ladder-like blind hole, and gasket is placed in annular groove.

The nut outer upper ends are hexagon, and external lower end is cylinder.

The end face of the connector is male cone (strobilus masculinus), has closely-pitched external screw thread on the cylindrical surface being connected with male cone (strobilus masculinus).

The leakage test tooling of the utility model can assemble more than one piece product simultaneously, can be equal by pressure after same interface air inlet Even to be assigned to each assembly parts position, product passes through top using sealing bottom surface (i.e. product outer rim protrusion and loop bar upper surface seal) Face nut compressing is from bottom surface air inlet, and top surface is observed, to check the leakage situation of product.

The utility model assembles more than one piece product simultaneously can guarantee that product batch produces, and the material selection copper of tooling can also To select other materials softer than aluminium alloy.

In the utility model, pressure can be evenly distributed to each assembly parts position after same interface air inlet, guaranteed from same One interface air inlet, and guarantee the pressure that each part product assembled is born.

Using sealing bottom surface (product outer rim protrusion and loop bar upper surface seal) when product testing, guarantee compressed gas not Epicoele can be entered by the sealing surface, so as to cause the erroneous judgement to product leakage.By top surface nut compressing from bottom surface air inlet, Top surface observation, checks the leakage situation of product, and the nut product by top surface with centre bore compresses, and guarantees product from bottom surface into pressure In the case where contracting air, it is unlikely to move up, while whether product cavity seals from top.

In use, more than one piece product can be packed into loop bar by leakage test tooling simultaneously, the outer rim protrusion in product middle position Bottom face is pressed on gasket, and the nut of hollow interior band annular sealing rubber ring is backed out from the upper surface of loop bar, by product from upper Compress down, prevent product upper and lower side there are pressure difference in the case where up move, and into the water by the tooling.

Then, compressed gas is inputted from same connector, compressed gas is evenly distributed on loop bar by assembly by casing Each product cavity lower end, inner cavity lower end is pressurized, and product cavity upper end is communicated with the atmosphere by hollow nut, from And it is poor to generate two-way pressure, when the leakage of product cavity sealing structure, the compressed air of lower end enters product upper end, and from nut Hollow position is emerged bubble, to achieve the purpose that batch checks product cavity leakproofness.

Compared with prior art, the utility model has the following beneficial effects:

The utility model changes the leakage test that such previous product can only carry out in assembly product, so that conversion is in portion It is carried out in part, detects the leakproofness of product in advance, leak part is handled in advance, to reduce because of component leakage problem The time of processing changed simultaneously previous primary a set of being sealed property of product test, be converted to it is present once carry out in batches it is close The test of envelope property, shortens bulk article production in the seal tightness test occupied time, so as to shorten assembly batch machining when Between, improve production efficiency.

Detailed description of the invention

Fig. 1 is the test specimen structural schematic diagram that need to be sealed test；

Fig. 2 is the cross-sectional view of loop bar and nut in the utility model, the Section A-A in corresponding diagram 3；

Fig. 3 is the top view of leakage test tooling；

Fig. 4 is flow graph of the compressed air in leakage test tooling；

Fig. 5 is product test specimen and the status diagram that leakage test tooling is used cooperatively；

In figure: loop bar 1, nut 2, connector 3, casing 4, connecting tube 5, gasket 6.

Specific embodiment

The utility model is further described in the following with reference to the drawings and specific embodiments, but not this should not be interpreted as with regard to this The range of theme described in utility model is only limitted to embodiment below, is not departing from the above-mentioned technical idea situation of the utility model Under, all various modifications made according to ordinary skill knowledge and customary means, replacement and change are included in practical In novel range.

As shown in Fig. 1~5, leakage test tooling includes loop bar 1, nut 2, connector 3, casing 4, connecting tube 5 and gasket 6, wherein loop bar 1 is for filling product, and for nut 2 for compressing product and observing leakage situation, connector 3 is defeated for connection test platform Enter compressed air, casing 4 guides compressed gas and gas pressure is distributed equally, and connecting tube 5 is for connecting loop bar 1 and casing 4, gasket 6 is used for the upper surface of sealed product and loop bar 1.

Such as Fig. 2, loop bar 1 is side band air inlet, and the externally threaded copper material cylindrical structure of upper end band, internal cavities are ladder Shape, wherein lower chamber outer diameter is greater than upper cavity outer diameter, and has an annular groove on the upper surface of upper cavity, and sealing is placed in annular groove Pad 6.

Such as Fig. 2, nut 2 be top have with product cavity through-hole of the same size, inner tip band annular sealing rubber ring is interior Subordinate end band fine thread, outer upper ends are general six side, and external lower end is copper material cylindrical structure.

Such as Fig. 3, the end face of connector 3 is 74 ° of male cone (strobilus masculinus)s, and cylindrical surface band M12x1 closely-pitched external screw thread, interior is through-hole structure, Material is copper material.

Such as Fig. 3, interior casing 4 is blind chamber, and length direction is uniformly distributed exhaust outlet, and outside is cylindrical copper material structure.

Seal test device use process is as follows:

1, connector 3 welding is carried out with casing 4, connecting tube 5, loop bar 1 according to Fig. 3 to be combined into one；

2, gasket 6 is assembled in the upper surface annular groove of loop bar 1；

3, product is put into vertically in loop bar 1 as shown in Figure 5；

4, it is screwed on the external screw thread on 1 top of loop bar after nut 2 being packed into ring packing cushion rubber, and product is compressed；

5, connector 3 is connect with testing stand, while the tooling is laid flat on the bracket in sink, it is desirable that flood work completely Dress；

6, the compressed air for opening testing stand, compressed air is inputted into tooling；

7, by the mesoporous on 2 top of nut, seen whether that bubble is emerged within the dwell time, after close testing stand On compressed air transfer valve, tooling is taken out into the water surface, the jointing of open test platform and tooling backs out nut 2, take out Product, use process terminate.

Claims (7)

1. one kind can carry out the leakage test tooling that batch checks product cavity leakproofness, it is characterised in that: including casing (4), One end of casing (4) is connected with connector (3), and the axis direction of casing (4) is provided with the more companies being connected with casing (4) It takes over (5), connecting tube (5) is connected with loop bar (1), and loop bar (1) upper end is threadedly coupled with nut (2)；

Described sleeve pipe (4) is cavity straight tube closed at one end, and cavity is connected to connecting tube (5)；

The loop bar (1) is the cylindrical body that upper surface is provided with ladder-like blind hole, is provided with air inlet, loop bar on the circumferential surface of cylindrical body (1) upper surface tapping is provided with gasket (6)；

The nut (2) is provided with stepped throughhole along its axial direction, and stepped throughhole includes upper hole and lower opening, and the aperture in upper hole is less than Lower opening, the aperture of lower opening are greater than the outer diameter of product, are provided with ring packing cushion rubber on the interface of upper hole and lower opening.

2. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: (5) two one group of the connecting tube, lives apart in the vertical line both ends of casing (4) axis, and divide at equal intervals between group and group Cloth.

3. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: being parallel to each other between the loop bar (1).

4. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: the internal diameter of the ring packing cushion rubber is equal to the aperture in upper hole, and outer diameter is equal to the aperture of lower opening.

5. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: loop bar (1) upper surface is provided with the annular groove coaxial with ladder-like blind hole, and gasket (6) is placed in annular groove.

6. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: nut (2) outer upper ends are hexagon, and external lower end is cylinder.

7. one kind according to claim 1 can carry out the leakage test tooling that batch checks product cavity leakproofness, special Sign is: the end face of the connector (3) is male cone (strobilus masculinus), has closely-pitched external screw thread on the cylindrical surface being connected with male cone (strobilus masculinus).