CN204286692U - A kind of test specimen air tight test device - Google Patents
A kind of test specimen air tight test device Download PDFInfo
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- CN204286692U CN204286692U CN201420739740.2U CN201420739740U CN204286692U CN 204286692 U CN204286692 U CN 204286692U CN 201420739740 U CN201420739740 U CN 201420739740U CN 204286692 U CN204286692 U CN 204286692U
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Abstract
A kind of test specimen air-tightness detection device, this device comprises: operating room; Water under high pressure circulation cleaning plant; High pressure air-tightness detection device; Industrial control computer, it can carry out water under high pressure cleaning to the casing after machine work and detect bubble-tight process under the control of industrial control computer, there is efficiency high, compact conformation, feature easy to maintenance, fill up in traditional manual detection and wasted time and energy, detected the shortcomings such as inaccurate and environmental pollution.In addition packoff frock can be changed for dissimilar casing, simple.
Description
Technical field
The utility model relates to component of machine air tight test technical field, especially relates to a kind of test specimen air tight test device.
Background technology
As everyone knows, in order to ensure the normal work of automobile various piece, high requirement is proposed to the impermeability of boxlike component of automobile.And the casing of casting exists hole unavoidably in casting, even if detection is qualified after casing casting, after machining is carried out to it, the hole exposed after its inner processing, thus cause casing to leak gas.
Traditional air tight test method is, by artificial, casing after machine work is carried out bulge test in water, and observe in water and whether have the bubble of the excessive formation of gas thus carry out bubble-tight judgement, the method is time-consuming, effort and the experience of testing result and tester is closely related, especially, burr remaining in casing and defect make casing still there is gas leakage hidden danger, therefore, this testing result directly casing being put into its acquisition of bulge test that water body carries out is inaccurate.
A kind of air-tightness detection tool of automotive engine control unit box is disclosed in CN202210020 utility model patent file, this frock is included in the cylinder moved up and down under cylinder drives, pressing plate for sealing is coordinated to compress the location-plate of tested casing, inlet channel is shaped with in the side of location-plate, the gas outlet of inlet channel is positioned at the surveyed area that the tested casing of location-plate upper surface surrounds, location-plate upper surface is shaped with the seal groove matched with tested casing periphery bottom surface geometric locus, O-ring seal is embedded with in seal groove, the counterbore internal fixtion of location-plate is provided with elasticity boss, elasticity boss is positioned at detected casing and matches with the apical pore of tested box top.This frock is by being arranged on the elasticity boss in seal area, avoid product in the consequence carrying out being weighed wounded in performing leak test or producing torsional deformation, effectively can improve the qualification rate of product, but this frock still only relates to gases at high pressure conveying when detecting detects, and the potential danger that after not considering casing machine work, manufacturing deficiency still has.
And for example air tightness detection machine disclosed in CN202008429 utility model patent file, the sealing that this detection machine is used for engine plastic pipe is monitored, and comprises casing; Be arranged on the sealing clamp on the worktable of casing, sealing clamp is provided with holder and the sealing cylinder corresponding with the working hole on plastic pipe; Be arranged on sealing clamp, detect the pressure transducer of pressure in plastic pipe; The data processor be connected with pressure transducer.This detection machine by holder holding workpiece, and detects pressure size in plastic tube by pressure transducer, but this detection machine does not still change the conventional sense mode being delivered to by gases at high pressure and carrying out sealing detection in plastic tube.
Utility model content
The purpose of this utility model is to provide a kind of test specimen air-tightness detection device, this device has operating room, water under high pressure circulation cleaning plant and high pressure air-tightness detection device, and coordinate control program, the air-leakage test completing casing class test specimen of high automation, pinpoint accuracy; The technical scheme adopted is: a kind of test specimen air-tightness detection device, comprising:
---operating room, described operating room is the cavity holding test specimen, enclosed by frame, is equipped with drives by holding hand driver part the specimen holder mechanical arm realizing moving up and down on the top of operating room;
---water under high pressure circulation cleaning plant, described water under high pressure circulation cleaning plant comprises and to be placed in described operating room and towards the high-pressure water nozzle of described test specimen, described high-pressure water nozzle is connected with high-pressure water pipe, and described high-pressure water pipe is through the water under high pressure oral siphon hole be positioned in frame; Described water under high pressure circulation cleaning plant also comprises the water tank be arranged in frame;
---high pressure air-tightness detection device, described high pressure air-tightness detection device comprises test specimen sealing clamp, described test specimen sealing clamp comprises the lower baffle plate of area slightly larger than test specimen lower surface area, towards the one side of test specimen, sealing gasket is housed at lower baffle plate, high pressure gas draft tube, through stretching in operating room after described lower baffle plate and sealing gasket, is equipped with high pressure admission head in the end of high pressure gas draft tube; Described test specimen sealing clamp is also included in the side shield that side shield driver part drives lower transverse shifting, and described side shield is provided with side rubber cushion towards the side of test specimen; Described high pressure air-tightness detection device also comprises the pressure transducer be contained in operating room and the control assembly be connected with pressure transducer.
Technical characteristic of the present utility model also has: described specimen holder mechanical arm comprises the hydraulic cylinder I being fixed on upper rack, and the piston rod of hydraulic cylinder I is fixedly connected with electric rotating machine, the motor shaft of described electric rotating machine is equipped with the mechanical paw of direct clamping test pieces.
Technical characteristic of the present utility model also has: described side shield driver part comprises hydraulic cylinder II, and the piston rod of hydraulic cylinder II is connected with described side shield.
Technical characteristic of the present utility model also has: described high-pressure water nozzle fixes clamping on high pressure water jets fixture head, and described high pressure water jets fixture head comprises the base be fixed in frame, the dop hinged with base, high pressure water jets fixture head described in clamping on dop.
Technical characteristic of the present utility model also has: described high pressure water jets fixture head totally eight, each four up and down.
Technical characteristic of the present utility model also has: described water tank is provided with at the bottom of the case of hatch door and taper, is provided with automatic control of water supply and drainage valve at the bottom of described case, is provided with water inlet pipe and drainpipe between described automatic control of water supply and drainage valve and feed-tank.
Technical characteristic of the present utility model also has: described side shield is two, and the bottom, the left and right sides of operating room respectively has one.
The beneficial effects of the utility model are: this device changes the structural shape that traditional test specimen pick-up unit only supplies test specimen gases at high pressure, integrate the multiple functions such as flaw removal, hole leak stopping, high-pressure air feed and water body air-leakage test, automaticity is high, testing result reliability, and security is good; This apparatus structure is compact, easy to maintenance, can adjust easily according to the difference of test specimen simultaneously, thus applicability is strong, dirigibility and compatibility all good; This detection method and this device with the use of, under control program manipulation, simple to operate, greatly reduce production cost.
Accompanying drawing explanation
Fig. 1 is utility model structural representation,
Tu2Shi operating room structural representation,
Fig. 3 is rack construction schematic diagram,
Fig. 4 is specimen holder robot manipulator structure schematic diagram,
Fig. 5 is high-pressure water nozzle clamp structure schematic diagram,
Fig. 6 is lower baffle plate structural representation,
Fig. 7 is side shield structural representation,
Wherein,
1 is operating room, and 2 is water under high pressure circulation cleaning plants, and 3 is high pressure air-tightness detection devices, and 4 is industrial control computers,
11 is frames, and 12 is water under high pressure oral siphon holes, and 13 is view windows, and 14 is hatch doors, and 15 is worktable, and 16 is water tanks, and 17 is automatically arrange water supply control valve, and 18 is high pressure water jets fixture heads,
19 is specimen holder mechanical arms, and 20 is test specimen sealing clamps,
181 is bases, and 182 is dops,
191 is hydraulic cylinders I, and 192 is electric rotating machines, and 193 is grippers,
201 is high pressure gas draft tube, and 202 is lower baffle plates, and 203 is sealing gaskets, and 204 is hydraulic cylinders II, and 205 is side shields, and 206 is side rubber cushions.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.First the utility model discloses a kind of test specimen air-tightness detection device, and this device comprises frame 11, holds test specimen, the operating room 1 enclosed by frame 11, water under high pressure circulation cleaning plant 2 and high pressure air-tightness detection device 3.
Be equipped with on the top of operating room 1 and drive by holding hand driver part the specimen holder mechanical arm 19 realizing moving up and down, water under high pressure circulation cleaning plant comprises and to be placed in operating room 1 and towards the high-pressure water nozzle of test specimen, high-pressure water nozzle is connected with high-pressure water pipe, high-pressure water pipe is through the water under high pressure oral siphon hole 12 be positioned in frame 11, and this water under high pressure circulation cleaning plant also comprises the water tank 16 be arranged in frame 11.High pressure air-tightness detection device comprises test specimen sealing clamp 20, test specimen sealing clamp 20 comprises area slightly larger than the lower baffle plate 202 of test specimen lower surface area and side shield 205, in the one side of test specimen, sealing gasket 203 is housed at lower baffle plate 202, high pressure gas draft tube 201 penetrates in operating room 1 through after lower baffle plate 202 and sealing gasket 203, and in the end of high pressure gas draft tube 201, high pressure admission head is housed.Side shield 205 is transverse shifting under side shield driver part drives, and side shield 205 is provided with side rubber cushion 206 towards the side of test specimen; Described high pressure air-tightness detection device also comprises the pressure transducer be contained in operating room 1 and the control assembly be connected with pressure transducer.
As shown in Figures 2 and 3, frame 11, the operating room 1 surrounded by frame 11, water under high pressure oral siphon hole 12, view window 13, hatch door 14, lower baffle plate 15, water tank 16, automatic control of water supply and drainage valve 17, high pressure water jets fixture head 18, specimen holder mechanical arm 19, test specimen sealing clamp 20.
Operating room 1, by four pillar support of frame 11, is inspection test specimen impermeability purposes.
Hatch door 14 is positioned at the upper end of operating room 1, is tilt flat plate structure, and detect front opening hatch door 14 at test specimen, by specimen holder on specimen holder mechanical arm 19, when wash phase and detection-phase, hatch door 14 is closed condition.
Water under high pressure oral siphon hole 12 on the top of operating room 1, and is positioned at the sidepiece of hatch door 14, and this water under high pressure oral siphon hole is slot, and the conveying for wash phase water under high pressure provides water under high pressure intake vent.
View window 13, on the plate of hatch door 14, is rectangular window, when clearing up and detection carries out, by view window 13 observing time, if any gas leakage, and can visual inspection determination air-leak section.
Lower baffle plate 202, bottom operating room 11, is square platy structure, and object is to form test specimen sealing clamp 20 together with side shield 205.
Water tank 16 is positioned at the lower end of worktable 15, is cone tank, its role is to: at clean-up phase, and the sewage that water under high pressure produces is assembled, and the water under high pressure circulation cleaning plant 2 being further transported to outer cover by the automatic control of water supply and drainage valve 17 of lower end carries out filtration cycle; In the airtight test stage, water tank 16 is imported by be circulated by the water under high pressure water of cleaning plant 2 of automatic control of water supply and drainage valve 17, further flood test specimen, monitor under high pressure air-tightness detection device 3 helps, if gas leakage, then can bubbling, just can determine air-leak section by view window naked eyes like this.
Automatic control of water supply and drainage valve 17 is positioned at the lower end of water tank 16, respectively there is a pipeline left and right, an outlet conduit, an inlet channel, two pipelines are all connected with feed-tank, under the control of industrial control computer 4, be the switch of water stream channel, cooperation water under high pressure circulation cleaning plant 2 completes the control to Inlet and outlet water.
As shown in Figure 1 and Figure 4, specimen holder mechanical arm 19 is positioned at the top of operating room 1, Upper cylindrical shape, and bottom is gripper, comprises hydraulic cylinder I 191, electric rotating machine 192, gripper 193.Hydraulic cylinder 191 is positioned at the upper end of specimen holder mechanical arm 19, and is fixed on the upper surface of frame 11, its object is to, before carrying out air-leakage test, be pressed in by test specimen on lower baffle plate 202, and after detection terminates, test specimen is withdrawn into initial position.
Electric rotating machine 192 is positioned at below hydraulic cylinder I 191, and when the time of carrying out clears up, electric rotating machine 192 drives test specimen to rotate, further, under water under high pressure effect, the rotation of test specimen evenly can clear up each corner of test specimen, makes the impurity cleanings such as burr more thorough.
Gripper 193 at specimen holder mechanical arm 19 bottom, is the claw structure of two pawl head, can completes the clamping of test specimen.
As shown in Figure 2 and Figure 7, high pressure water jets fixture head 18 is positioned at the inside surface of operating room 1, and quantity is eight, each four up and down, comprises base 181 and dop 182.
Dop 182, on base 181, is the barrel-like structure of strap bolt, and the upper end of dop 182 is two bolts, the high-pressure water nozzle stretched in barrel-like structure can be fixed, have the feature of conveniently assemble and disassemble.
As shown in Fig. 1, Fig. 6 and Fig. 7, test specimen sealing clamp 20 comprises lower baffle plate 202 and side shield 203.Lower baffle plate 204 is positioned at the central authorities of worktable, for being with the square plate of rubber gasket, when carrying out impermeability test, is sealed the lower surface of test specimen by lower baffle plate 202.Side shield 203 two, lays respectively at the two side place of operating room 1, in the air-leakage test stage, drives side shield 203 to move to test specimen direction, closed in the hole of test specimen side, play the effect of side seal by hydraulic cylinder II 204.
Casing upper surface open alleged herein, sidewall has the structure in hole, the wheel box of such as automobile, like this, lower baffle plate 202 completes the sealing of upper surface, and side shield 203 completes the sealing of lateral aperture.
The invention also discloses the air tight test method using above-mentioned detection device to carry out, the method comprises the following steps:
1) prepare test specimen, because test specimen is foundry goods, may generate new pore after machining, therefore this test specimen is casting and machined casing, such as box body of car gear-box;
2) start verifying attachment, open hatch door 14, press the clamping button on industrial control computer 4, test specimen is fixed in the operating room 1 of verifying attachment by specimen holder manipulator clamping, and now test specimen position is initial position, closedown hatch door 14 after completing;
3) the high pressure water washing stage: press the start button on industrial control computer 4, start the operation of first stage, the i.e. high pressure water washing stage, now test specimen is descending is adjusted to flush position, by high-pressure water nozzle, high pressure washing is carried out to test specimen, the speed of water under high pressure is 250 meter per seconds, and start electric rotating machine 192 with the rotational speed of 10 revolutions per seconds, test specimen is made to bear rotation while Gao Shuishui rinses, water after flushing is back to feed-tank 16 and carries out dust removal and filtration process by water under high pressure circulation cleaning plant, complete the water circulation in this stage, and then complete the scale removal process of test specimen, whole process is the time of setting in advance, namely 15 minutes, also can be as required, reset the time,
4) the air tight test stage:
41) under the button control of industrial control computer 4, subordinate phase is entered, the i.e. air tight test stage, the hydraulic cylinder I 191 of specimen holder mechanical arm 19 runs, promote test specimen and come downwards to air tight test position, the lower surface of test specimen contacts with lower baffle plate 205, under the pressure of 2MPa, sealed up the bottom surface of test specimen by rubber blanket 203, side shield 206 lives the side of test specimen band axis hole at the sealed under pressure of 2MPa simultaneously;
42) gases at high pressure of 0.5MPa are pressed into by high pressure gas draft tube 201 in the test specimen closed, make it to reach high pressure conditions by high pressure air-tightness detection device running after sealing;
43) control of water supply and drainage valve 17 water inlet is opened automatically, and water is pressed into water tank 16 with the pressure of 5MPa by water under high pressure circulation cleaning plant 2, and floods test specimen, keeps 30 seconds;
44) pressure transducer of high pressure air-tightness detection device detects the change of test specimen inner air pressure, if the pressure 0.5MPa of pressure actual size and setting does not meet and drinks after detecting, then high pressure air-tightness detection device will be reported to the police, now can determine that test specimen leaks gas, further by view window 13, by visual inspection bubble, determine Gas leak position place, detection judgement completes, automatic control of water supply and drainage valve 17 water delivering orifice is opened, and sucks wherein carry out dedusting at the 10MPa pressure drop water of water under high pressure circulation cleaning plant 2;
45) side shield 205 and backboard 202 reset, and test specimen is retracted by hydraulic cylinder I 191, goes upward to flush position;
5) the spin-dry stage: test specimen with the rotating speed turn of 100 revolutions per seconds, gets rid of remove test specimen remaining moisture content under electric rotating machine 192 drives;
6) test specimen continues to be gone upward to initial position by hydraulic cylinder I 191, and industrial control computer 4 points out detection to complete, and output report, open hatch door 14, take out test specimen and put dry in the cool, test specimen air-leakage test completes.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belongs to protection domain of the present utility model.
Claims (7)
1. a test specimen air-tightness detection device, comprising:
---operating room, described operating room is the cavity holding test specimen, enclosed by frame, is equipped with drives by holding hand driver part the specimen holder mechanical arm realizing moving up and down on the top of operating room;
---water under high pressure circulation cleaning plant, described water under high pressure circulation cleaning plant comprises and to be placed in described operating room and towards the high-pressure water nozzle of described test specimen, described high-pressure water nozzle is connected with high-pressure water pipe, and described high-pressure water pipe is through the water under high pressure oral siphon hole be positioned in frame; Described water under high pressure circulation cleaning plant also comprises the water tank be arranged in frame;
---high pressure air-tightness detection device, described high pressure air-tightness detection device comprises test specimen sealing clamp, described test specimen sealing clamp comprises the lower baffle plate of area slightly larger than test specimen lower surface area, towards the one side of test specimen, sealing gasket is housed at lower baffle plate, high pressure gas draft tube, through stretching in operating room after described lower baffle plate and sealing gasket, is equipped with high pressure admission head in the end of high pressure gas draft tube; Described test specimen sealing clamp is also included in the side shield that side shield driver part drives lower transverse shifting, and described side shield is provided with side rubber cushion towards the side of test specimen; Described high pressure air-tightness detection device also comprises the pressure transducer be contained in operating room and the control assembly be connected with pressure transducer.
2. according to test specimen air-tightness detection device according to claim 1, it is characterized in that: described specimen holder mechanical arm comprises the hydraulic cylinder I being fixed on upper rack, the piston rod of hydraulic cylinder I is fixedly connected with electric rotating machine, the motor shaft of described electric rotating machine is equipped with the mechanical paw of direct clamping test pieces.
3. according to test specimen air-tightness detection device according to claim 1, it is characterized in that: described side shield driver part comprises hydraulic cylinder II, the piston rod of hydraulic cylinder II is connected with described side shield.
4. according to test specimen air-tightness detection device according to claim 1, it is characterized in that: described high-pressure water nozzle fixes clamping on high pressure water jets fixture head, described high pressure water jets fixture head comprises the base be fixed in frame, the dop hinged with base, high pressure water jets fixture head described in clamping on dop.
5. according to test specimen air-tightness detection device according to claim 4, it is characterized in that: described high pressure water jets fixture head totally eight, each four up and down.
6. according to test specimen air-tightness detection device according to claim 1, it is characterized in that: described water tank is provided with at the bottom of the case of hatch door and taper, be provided with automatic control of water supply and drainage valve at the bottom of described case, between described automatic control of water supply and drainage valve and feed-tank, be provided with water inlet pipe and drainpipe.
7. according to test specimen air-tightness detection device according to claim 1, it is characterized in that: described side shield is two, the bottom, the left and right sides of operating room respectively has one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739740.2U CN204286692U (en) | 2014-11-28 | 2014-11-28 | A kind of test specimen air tight test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739740.2U CN204286692U (en) | 2014-11-28 | 2014-11-28 | A kind of test specimen air tight test device |
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| Publication Number | Publication Date |
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| CN204286692U true CN204286692U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420739740.2U Expired - Fee Related CN204286692U (en) | 2014-11-28 | 2014-11-28 | A kind of test specimen air tight test device |
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| CN (1) | CN204286692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359628A (en) * | 2014-11-28 | 2015-02-18 | 济南大学 | Device and method for testing airtightness of test piece |
| CN107991567A (en) * | 2017-11-10 | 2018-05-04 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function test device and test method |
| CN108064334A (en) * | 2017-11-10 | 2018-05-22 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function tester |
-
2014
- 2014-11-28 CN CN201420739740.2U patent/CN204286692U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359628A (en) * | 2014-11-28 | 2015-02-18 | 济南大学 | Device and method for testing airtightness of test piece |
| CN104359628B (en) * | 2014-11-28 | 2017-02-22 | 济南大学 | Method for testing airtightness of test piece |
| CN107991567A (en) * | 2017-11-10 | 2018-05-04 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function test device and test method |
| CN108064334A (en) * | 2017-11-10 | 2018-05-22 | 苏州富强科技有限公司 | Special-shaped component high pressure watertight sexual function tester |
| WO2019090666A1 (en) * | 2017-11-10 | 2019-05-16 | 苏州富强科技有限公司 | Device for testing watertightness of irregularly shaped component under high pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20171128 |