CN110319979A - A kind of air tightness detection tool and air tightness detecting system - Google Patents
A kind of air tightness detection tool and air tightness detecting system Download PDFInfo
- Publication number
- CN110319979A CN110319979A CN201910576038.6A CN201910576038A CN110319979A CN 110319979 A CN110319979 A CN 110319979A CN 201910576038 A CN201910576038 A CN 201910576038A CN 110319979 A CN110319979 A CN 110319979A
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- air tightness
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 241001661355 Synapsis Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of air tightness detection tool and air tightness detecting systems, including bracket, the cradle top is fixed with fixed plate, lower part, which is equipped with, places pedestal, it is characterized by: being fixed with vertical inverted cylinder in the fixed plate, the cylinder is connected to by hose with Pneumatic valve, the Pneumatic valve is connected to pressure regulator valve and solenoid valve respectively by hose, the pressure regulator valve passes through hose with the solenoid valve and is connected to respectively with gas source, the connecting cylinder that the piston rod part of the cylinder is fixed with top closure, Open Side Down offers air inlet on the side wall of the connecting cylinder；Workpiece for measurement is placed on the placement pedestal, the upper surface of the workpiece shell of the workpiece for measurement is equipped with the breather valve being connected to the workpiece interior of shell, and the connecting cylinder is located at the proper side of the breather valve.The apparatus and system structure is simple, practical, can be applicable in the air-leakage test of the workpiece of variety classes and model size.
Description
Technical field
The present invention relates to air tightness detection equipment technical field more particularly to a kind of air tightness detection tool and airtight detection systems
System.
Background technique
In industrial production application, many mechanical parts, controller etc. all need to do air-leakage test.For example,
Three big core components one of of the electric machine controller as new-energy automobile, quality directly affects the performance of vehicle, and prevents
Controller, which is intake, becomes a great problem of industry.In addition to other than install, use etc. and evade, controller itself it is anti-
It is aqueous to become the very corn of a subject.The mode of traditional detection waterproof is (5~10) min that controller submerges, and is led to
Dismantling controller is crossed to detect waterproofness, but this detection mode exists as following drawbacks: 1) being detected controller and take out by a certain percentage
Inspection, cannot all cover；2) controller detected needs secondary assembling, it may appear that screw installation torsion is insufficient, torsion is excessive,
Situations such as colliding with is easy to influence properties of product；3) controller of waterproof test was made, circuit board is easy dampness, leads to insulating properties
It can be deteriorated.
Therefore, non-invasive waterproof test becomes the leading of developmental research now, passes through pressure differential detection electric machine controller etc.
The method of air tightness of workpiece is come into being.The method is not only not necessarily to for measured workpiece being immersed in the water, but also does not have to dismantle measured workpiece
Observation；But every kind of different workpiece required when doing air-leakage test matched mold match could complete survey
Examination, thus it is restricted too strong, and die sinking is costly, is unfavorable for the air-leakage test of the various different model size workpiece of small lot.
Summary of the invention
To solve the problems mentioned above in the background art, the present invention provides a kind of air tightness detection tool and airtight detection system
System, the apparatus structure is simple, practical, can be applicable in the air-leakage test of the workpiece of variety classes and model size.
To achieve the above object, the invention provides the following technical scheme: a kind of air tightness detection tool, including bracket, it is described
Cradle top is fixed with fixed plate, and lower part is equipped with the placement pedestal for placing workpiece for measurement, is structurally characterized in that: the fixation
Vertical inverted cylinder is fixed on plate, the cylinder is connected to by hose with Pneumatic valve, and the Pneumatic valve is distinguished by hose
It is connected to pressure regulator valve and solenoid valve, the pressure regulator valve passes through hose with the solenoid valve and is connected to respectively with gas source, the cylinder
Piston rod part be fixed with the company that the breather valve for being equipped with the upper surface of the workpiece shell of the workpiece for measurement is connected to
Connect cylinder, the connecting cylinder top closing, Open Side Down, and offers air inlet on its side wall.
Preferably, the Pneumatic valve is two-position five-way list Pneumatic reversal valve, and the solenoid valve is guide electromagnetic valve.
Preferably, the cylinder is twin shaft cylinder.
Preferably, straight coupling is installed on the air inlet.
Preferably, seal washer is fixed on the connecting cylinder lower end surface.
Preferably, several groups location hole is offered on the placement pedestal, location hole described in every group is big with a kind of model
Mounting hole on small workpiece for measurement is corresponding, and the location hole is furnished with corresponding positioning pin；The positioning pin passes through the peace
The workpiece for measurement is fixed on the placement pedestal by dress hole and the corresponding location hole.
Preferably, the bracket is gate comprising the side plate of two sides and the top plate for being fixed on the side plate top, it is described
The both ends of fixed plate are separately fixed on the side plate of two sides, and the upside of the fixed plate is connected and fixed with the top plate.
It preferably, further include the positioning mechanism being slidably connected on the side plate, the side plate interior sides offer horizontal
Sliding slot, the positioning mechanism include the slide plate being slidably connected on the sliding slot, are fixed on the outside of the slide plate horizontally disposed
Moving cylinder, the top of the moving cylinder is fixed with angle-style positioning plate, and the positioning plate is located on the placement pedestal, institute
Positioning plate is stated to adjust by the flexible of the sliding of the slide plate and the moving cylinder from the position on the placement pedestal
It sets；The slide plate is equipped with the fastening screw that the slide plate can be prevented to slide along the sliding slot.
Preferably, the gas source includes the first gas source and the second gas source, and the pressure regulator valve passes through hose and first gas
Source connection, the solenoid valve are connected to by hose with second gas source.
Present invention also provides a kind of air tightness detecting systems, including above-mentioned air tightness detection tool, and pass through the air inlet
The airtight detecting apparatus that hole is connect with the air tightness detection tool.
The beneficial effects of the present invention are:
1) airtight detecting apparatus can be connected to the workpiece to be checked that a variety of shells have breather valve through connecting cylinder, thus to be checked
Workpiece carries out air-leakage test, detects easy to operate, applied widely；
2) pressure adjustable under cylinder, the limitation of no stroke limit: on the workpiece shell that connecting cylinder is pressed into workpiece for measurement,
By adjusting pressure regulator valve, it can be precisely controlled the downward pressure of cylinder, to adapt to the bearing capacity of different workpieces shell, on the one hand prevented
The pressure that only connecting cylinder acts on workpiece shell is overweight and causes the damage of workpiece shell, on the other hand, avoids pressure too small
And the phenomenon that generating workpiece shell contact position gas leakage of the connecting cylinder with breather valve periphery；Cooperated simultaneously by solenoid valve and Pneumatic valve
It controls cylinder piston rod to push, rise, the piston rod of cylinder can arbitrarily stretch in stroke range itself, can adapt to different height
The workpiece to be checked of degree, since cylinder piston rod downward pressure is adjustable, therefore the workpiece shell pressure-bearing that will not generate workpiece for measurement is overweight
The case where, because limiting piston rod stroke without travel switch is additionally arranged in workpiece height position to be checked；
3) this air tightness detection tool structure is simple, applied widely, detection efficiency is high, convenient to be examined one by one to workpiece
It surveys, improves the qualification rate of the finished product；
4) Multiple Type size workpiece to be checked is positioned, to enable the breather valve and connecting cylinder on workpiece to be checked
Seamless connection.
Detailed description of the invention
Fig. 1 is structural schematic diagram one of the invention.
Fig. 2 is structural schematic diagram two of the invention.
Fig. 3 is the perspective view of the explosion that pedestal and cylinder are placed in the present invention.
Fig. 4 is the structural schematic diagram of workpiece for measurement in the present invention.
Fig. 5 is whole explosive view of the invention.
Fig. 6 is the gas circuit schematic diagram in the embodiment of the present invention 1.
Fig. 7 is the gas circuit schematic diagram in the embodiment of the present invention 2.
Fig. 8 is the structural schematic diagram of positioning mechanism and bracket in the embodiment of the present invention 3.
Fig. 9 is the enlarged diagram in Fig. 8 of the present invention at A.
Wherein: 1. brackets；11. fixed plate；12. placing pedestal；121. location hole；122. positioning pin；13. side plate；131.
Sliding slot；14. top plate；15. reinforcing plate muscle；2. cylinder；21. upper cavity part；22. lower cavity part；23. pressing plate；3. Pneumatic valve；4. pressure regulation
Valve；5. solenoid valve；6. gas source；61. the first gas source；62. the second gas source；7. connecting cylinder；71. air inlet；711. straight-through connections；
72. seal washer；8. workpiece shell；81. breather valve；82. mounting hole；9. slide plate；91. positioning cylinder；92. positioning plate；93. tight
Gu screw.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment 1
A kind of air tightness detection tool is fixed with fixed plate at the top of the bracket 1 as shown in Figures 1 to 6, including bracket 1
11, lower part is equipped with horizontal placement pedestal 12, and vertical inverted cylinder 2 is fixed in the fixed plate 11, and the cylinder 2 passes through
Hose is connected to Pneumatic valve 3, and the Pneumatic valve 3 is two-position five-way list Pneumatic reversal valve, and the cylinder 2 includes upper cavity part 21 under
Cavity portion 22, the upper cavity part 21 and lower cavity part 22 are connected to Pneumatic valve 3 respectively by hose, and are made by the commutation of Pneumatic valve 3
With to control the flexible of cylinder 2, the Pneumatic valve 3 is connected to pressure regulator valve 4 and solenoid valve 5 respectively by hose, the solenoid valve
5 be guide electromagnetic valve, and by the convenient control to main valve Pneumatic valve 3 of solenoid valve 5, the pressure regulator valve 4 and the solenoid valve 5 are equal
It is connected to respectively with gas source 6 by hose, gas source 6 is 2 pressure supply of cylinder through pressure regulator valve 4 and Pneumatic valve 2 when work, is led at pressure regulator valve 4
It crosses hose and is connected with pressure gauge, to facilitate monitoring through the pressure in 4 rear hose pipeline of pressure regulator valve, the piston rod top of the cylinder 2
The connecting cylinder 7 that portion is fixed with top closure, Open Side Down offers air inlet 71, air inlet 71 on the side wall of the connecting cylinder 7
On be threaded with straight coupling 711, by straight coupling 711 to facilitate air inlet 71 to be connected to airtight detecting apparatus；
Workpiece for measurement is placed on the placement pedestal 12, the upper surface of the workpiece shell 8 of the workpiece for measurement is equipped with and the workpiece
The breather valve 81 being connected to inside shell 8, the connecting cylinder 7 are located at the surface of the breather valve 81, when cylinder 2 piston rod to
Under when moving to certain position, connecting cylinder 7 covers breather valve 81, and 7 lower end surface of connecting cylinder is pressed on 8 table of workpiece shell
Face is fixed with seal washer 72 on 7 lower end surface of connecting cylinder, can increase air-tightness, prevent connecting cylinder 7 from connecing with workpiece shell 8
Synapsis gas leakage.
Reduce pressure of the piston to 7 top of connecting cylinder of cylinder 2 when in the present embodiment, in order to work, the cylinder 2 is set
It is set to twin shaft cylinder, the top of 2 piston rod of cylinder is fixed with pressing plate 23, and 7 top of connecting cylinder is fixed on pressing plate 23.
In the present embodiment, it further regards to shown in Fig. 3, Fig. 4, Fig. 5, for convenience to the work to be measured of different model size
Part positioning, makes its breather valve 81 be at the underface of connecting cylinder 7, facilitates air tightness detection apparatus by connecting cylinder 7 through breathing
Valve 81 is inflated into the workpiece shell 8 of workpiece for measurement, offers several groups location hole 121 on the placement pedestal 12, often
The group location hole 121 is corresponding with the mounting hole 82 on a kind of workpiece for measurement of model size, and the location hole 121 is furnished with
Corresponding positioning pin 122；The positioning pin 122 by the mounting hole 82 and the corresponding location hole 121 will it is described to
Workpiece is surveyed to be fixed on the placement pedestal 12.Specifically, workpiece for measurement is placed on and is placed on pedestal 12, while making mounting hole
82 correspond with certain corresponding group location hole 121, and being inserted into positioning pin 122 makes workpiece for measurement be fixed on placement pedestal 12
On, underface of the breather valve 81 on workpiece for measurement just at connecting cylinder 7 at this time.
In the present embodiment, the bracket 1 is gate comprising the side plate 13 of two sides and is fixed on 13 top of side plate
Top plate 14, the both ends of the fixed plate 11 are separately fixed on the side plate 13 of two sides, the upside of the fixed plate 11 with
The top plate 14 is connected and fixed.Two sides side plate 13 and 14 junction of top plate, fixed plate 11 and 14 junction of top plate and fixed plate
11 are respectively and fixedly provided with reinforcement plate muscle 15 with 13 junction of two sides side plate, and Pneumatic valve 3, pressure regulator valve 4 and solenoid valve 5 are fixedly mounted
In fixed plate 11.
The embodiment of the present application also provides a kind of air tightness detecting system, including above-mentioned air tightness detection tool, and passes through institute
State the airtight detecting apparatus that air inlet 71 is connect with the air tightness detection tool.
Workpiece for measurement: when detecting to workpiece for measurement, being placed on place on pedestal 12 first by working method and principle,
And adjusting position makes the breather valve 81 on workpiece shell 8 be in the underface of connecting cylinder 7, while make mounting hole 82 with it is corresponding certain
Group location hole 121 corresponds, and is then fixed on workpiece for measurement by positioning pin 122 and places on pedestal 12；Then it successively opens
Pressure regulator valve 4 and solenoid valve 5 are opened, upper cavity part 21 pressurising of the Pneumatic valve 3 to cylinder 2 is controlled by solenoid valve 5, makes 2 piston rod of cylinder
Downward actuation leads to simultaneously until the pressing of 7 lower end surface of connecting cylinder covers breather valve 81 on the workpiece shell 8 of workpiece for measurement
Pressure regulator valve 4 is overregulated to control the downward pressure size of 2 piston rod of cylinder, so that connecting cylinder 7 be made to act on workpiece shell 8
Pressure is unlikely to excessive and damages workpiece shell 8 by pressure, and it is too small and contact connecting cylinder 7 with workpiece shell 8 to be unlikely to pressure
Locate gas leakage, thus achieve the purpose that make connecting cylinder 7 with workpiece shell 8 is seamless is connected to；It will be finally connected to by hose with connecting cylinder 7
Airtight detecting apparatus open, to workpiece to be checked carry out air-leakage test.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that, as shown in fig. 7, in the present embodiment, it is described
Gas source 6 includes the first gas source 61 and the second gas source 62, and the pressure regulator valve 4 is connected to by hose with first gas source 61, described
Solenoid valve 5 is connected to by hose with second gas source 62.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, the difference is that, referring to shown in Fig. 8, Fig. 9, in the present embodiment
In, further include the positioning mechanism being slidably connected on the side plate 13, horizontal sliding slot 131 offered on the inside of the side plate 13,
The positioning mechanism includes the slide plate 9 being slidably connected on the sliding slot 131, and the outside of the slide plate 9 is fixed with horizontally disposed
Positioning cylinder 91, the top of the positioning cylinder 91 is fixed with angle-style positioning plate 92, and the positioning plate 92 is located at the placement
On pedestal 12, the positioning plate 92 is adjusted by the flexible of the sliding of the slide plate 9 and the positioning cylinder 91 from institute
State the position placed on pedestal 12；The slide plate 9 is equipped with the fastening that the slide plate 9 can be prevented to slide along the sliding slot 131
Screw 93 contradicts its end firmly on side plate 13 and realizes slide plate 9 on sliding slot 131 by tightening fastening screw 93
It is fixed.By adjusting this positioning mechanism, the workpiece for measurement of disposable type size can be fixed on and be placed on pedestal, and made simultaneously
Breather valve 81 on the workpiece shell 8 of workpiece for measurement is in the underface of connecting cylinder 7, easy to operate, applied widely.
In the present embodiment, positioning cylinder 91 is also replaced by electric pushrod, and effect is equivalent.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of air tightness detection tool, including bracket (1), bracket (1) top is fixed with fixed plate (11), and lower part, which is equipped with, to be used
In the placement pedestal (12) for placing workpiece for measurement, it is characterised in that: be fixed with vertical inverted cylinder on the fixed plate (11)
(2), the cylinder (2) is connected to by hose with Pneumatic valve (3), the Pneumatic valve (3) pass through hose respectively with pressure regulator valve (4) and
Solenoid valve (5) connection, the pressure regulator valve (4) are connected to gas source (6) by hose respectively with the solenoid valve (5), the gas
The piston rod part of cylinder (2) is fixed with the breather valve being equipped with for the upper surface of the workpiece shell (8) with the workpiece for measurement
(81) connecting cylinder (7) being connected to, connecting cylinder (7) top closure, Open Side Down, and offers air inlet on its side wall
(71)。
2. a kind of air tightness detection tool according to claim 1, it is characterised in that: the Pneumatic valve (3) is two-position five-way
Single Pneumatic reversal valve, the solenoid valve (5) are guide electromagnetic valve.
3. a kind of air tightness detection tool according to claim 1, it is characterised in that: the cylinder (2) is twin shaft cylinder.
4. a kind of air tightness detection tool according to claim 1, it is characterised in that: be equipped on the air inlet (71) straight
Pass joint (711).
5. a kind of air tightness detection tool according to claim 1, it is characterised in that: on connecting cylinder (7) lower end surface
It is fixed with seal washer (72).
6. a kind of air tightness detection tool according to claim 1, it is characterised in that: offered on the placement pedestal (12)
Several groups location hole (121), location hole described in every group (121) with the mounting hole (82) on a kind of workpiece for measurement of model size
Corresponding, the location hole (121) is furnished with corresponding positioning pin (122)；The positioning pin (122) passes through the mounting hole (82)
The workpiece for measurement is fixed on the placement pedestal (12) with the corresponding location hole (121).
7. a kind of air tightness detection tool according to claim 1, it is characterised in that: the bracket (1) is gate comprising
The top plate (14) of the side plate (13) of two sides and fixed side plate (13) top, the both ends of the fixed plate (11) are separately fixed at
On the side plate (13) of two sides, upside and the top plate (14) of the fixed plate (11) are connected and fixed.
8. a kind of air tightness detection tool according to claim 7, it is characterised in that: further include being slidably connected at the side plate
(13) positioning mechanism on, side plate (13) inside offer horizontal sliding slot (131), and the positioning mechanism includes that sliding connects
The slide plate (9) on the sliding slot (131) is connect, is fixed with horizontally disposed positioning cylinder (91), institute on the outside of the slide plate (9)
The top for stating positioning cylinder (91) is fixed with angle-style positioning plate (92), and the positioning plate (92) is located at the placement pedestal (12)
On, the positioning plate (92) is adjusted by the flexible of the sliding of the slide plate (9) and the positioning cylinder (91) from institute
State the position placed on pedestal (12)；The slide plate (9), which is equipped with, can prevent the slide plate (9) sliding along the sliding slot (131)
Dynamic fastening screw (93).
9. a kind of air tightness detection tool according to claim 1, it is characterised in that: the gas source (6) includes the first gas source
(61) it is connected to by hose with first gas source (61) with the second gas source (62), the pressure regulator valve (4), the solenoid valve (5)
It is connected to by hose with second gas source (62).
10. a kind of air tightness detecting system, which is characterized in that including airtight detection work described in claim 1 to 9 any one
Dress, and the airtight detecting apparatus being connect by the air inlet (71) with the air tightness detection tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576038.6A CN110319979A (en) | 2019-06-28 | 2019-06-28 | A kind of air tightness detection tool and air tightness detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576038.6A CN110319979A (en) | 2019-06-28 | 2019-06-28 | A kind of air tightness detection tool and air tightness detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319979A true CN110319979A (en) | 2019-10-11 |
Family
ID=68121333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910576038.6A Pending CN110319979A (en) | 2019-06-28 | 2019-06-28 | A kind of air tightness detection tool and air tightness detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929743A (en) * | 2020-08-05 | 2020-11-13 | 天津达祥精密工业有限公司 | Workpiece core breaking detection device |
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| CN203455140U (en) * | 2013-09-16 | 2014-02-26 | 潍柴动力(潍坊)再制造有限公司 | Remanufacturing engine cylinder cap air tight test apparatus |
| CN105928661A (en) * | 2016-07-01 | 2016-09-07 | 天津众达精密机械有限公司 | Modularized casting airtight detection equipment |
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| CN106855068A (en) * | 2016-12-30 | 2017-06-16 | 博世华域转向系统（烟台）有限公司 | A kind of single cylinder boost module and boosting method |
| CN206683820U (en) * | 2017-04-17 | 2017-11-28 | 安徽江淮汽车集团股份有限公司 | A kind of front axle steering knuckle turns to analogue means under water |
| CN108061627A (en) * | 2017-12-22 | 2018-05-22 | 芜湖全程智能科技有限公司 | Electronic parking actuator sealing performance test method |
| CN209979149U (en) * | 2019-06-28 | 2020-01-21 | 杭州洲钜电子科技有限公司 | Airtightness detection tool and airtightness detection system |
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2019
- 2019-06-28 CN CN201910576038.6A patent/CN110319979A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481674A (en) * | 2013-09-03 | 2014-01-01 | 西北工业大学 | Full-automatic detecting and marking device |
| CN203455140U (en) * | 2013-09-16 | 2014-02-26 | 潍柴动力(潍坊)再制造有限公司 | Remanufacturing engine cylinder cap air tight test apparatus |
| CN105928661A (en) * | 2016-07-01 | 2016-09-07 | 天津众达精密机械有限公司 | Modularized casting airtight detection equipment |
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| CN106855068A (en) * | 2016-12-30 | 2017-06-16 | 博世华域转向系统（烟台）有限公司 | A kind of single cylinder boost module and boosting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929743A (en) * | 2020-08-05 | 2020-11-13 | 天津达祥精密工业有限公司 | Workpiece core breaking detection device |
| CN111929743B (en) * | 2020-08-05 | 2023-08-04 | 天津达祥精密工业有限公司 | Workpiece broken core detection device |
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