CN105258868A - Air tightness detecting and positioning device - Google Patents
Air tightness detecting and positioning device Download PDFInfo
- Publication number
- CN105258868A CN105258868A CN201510778342.0A CN201510778342A CN105258868A CN 105258868 A CN105258868 A CN 105258868A CN 201510778342 A CN201510778342 A CN 201510778342A CN 105258868 A CN105258868 A CN 105258868A
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- mounting groove
- floating pin
- pin
- spring
- location device
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Abstract
The invention belongs to the field of air tightness detecting and positioning equipment and particularly relates to an air tightness detecting and positioning device for aluminum alloy wheels. The air tightness detecting and positioning device comprises a positioning block and a floating pin. The bottom of the positioning block is provided with a first mounting groove for mounting a sealing pad and the sealing pad is provided with an air inlet. The top of the positioning block is provided with a second mounting groove. The first mounting groove and the second mounting groove are in communication with each other via a process hole. The floating pin for measuring the gas flow is arranged inside the second mounting groove. An elastic resetting mechanism is arranged between the floating pin and the process hole. The second mounting groove is of a stepped structure. The floating pin extends into the second mounting groove. A sealing ring is sleeved onto the lower end of the floating pin. The bottom of the sealing ring presses against the stepped surface of the second mounting groove, so that the lower end of the second mounting groove is in the sealed state. The floating pin is in the form of an embedded floating pin. According to the technical scheme of the invention, by means of the elastic resetting mechanism, the flexibility of the floating pin is improved. The device is good in internal sealing performance, simple in structure, convenient in air tightness measuring operation and high in measuring accuracy.
Description
Technical field
The invention belongs to detection and localization apparatus field, particularly relate to the airtight detection and location device of one of aluminum-alloy wheel.
Background technology
Whether wheel, as the important spare part of automobile, needs to have good sealing guarantee vehicle safe driving, therefore need the impermeability detecting wheel to meet the requirements.And the airtight verifying attachment of traditional wheel adopts the embedded locating piece of monoblock type, adopt this verifying attachment that the floating pin of verifying attachment can be made dumb, feed back without detection signal after causing product clamping, equipment breakdown is easily caused to occur, detection operation is insensitive, reaction is slow, simultaneously conventional detection devices complex structure.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of airtight detection and location device, and for solving in prior art, floating pin is dumb, detection accuracy is poor, easily cause the problem such as equipment breakdown, poor stability.
For achieving the above object and other relevant objects, the invention provides a kind of airtight detection and location device, comprise locating piece and the pin that floats, the bottom of described locating piece is provided with the first mounting groove for installing sealing gasket, described sealing gasket is provided with air intake opening, the top of described locating piece is provided with the second mounting groove, be communicated with by fabrication hole between described first mounting groove with described second mounting groove, floating pin for detecting gas flow is arranged in described second mounting groove, between described floating pin and described fabrication hole, elastic reset structure is installed, described second mounting groove is ladder-type structure, described floating pin stretches in described second mounting groove, and described floating pin lower end is arranged with O-ring seal, and the cascaded surface that described second mounting groove is pushed down in the bottom of O-ring seal makes the lower end of the second mounting groove be sealing state, described floating pin is embedded floating pin.
The invention has the beneficial effects as follows: the flexibility ratio improving the pin that floats by arranging elastic reset structure, apparatus structure inner sealing is good, structure is simple, measurement impermeability is easy to operate, accuracy that is that measure is high, O-ring seal is arranged on and floats on pin, and the pin that and then floats moves together, floating pin pushes down the cascaded surface of the second mounting groove under gravity with O-ring seal, the second mounting groove is made to be sealing state near one end of fabrication hole, be conducive to detecting after gas is full of fabrication hole and promote pin motion of floating, improve the accuracy measured.
, further, described floating pin and described second mounting groove are that clearance fit is installed.
Further, described elastic reset structure is spring, and one end of spring is connected with described floating pin, and the other end of described spring is fixed in described fabrication hole.
Further, when the cascaded surface of described second mounting groove pushed down by described O-ring seal, described spring is compressive state.
Adopt the beneficial effect of above-mentioned further scheme to be: spring resets convenient, and structure is simple, cost is low, drive the pin that floats to swing by spring, improve the dirigibility of the pin that floats.
Further, described sealing gasket adopts setting-in mode to be assemblied in described first mounting groove, maintains good sealing property, avoids Leakage Gas, be conducive to gas and enter into assigned address, improves the accuracy measured.
Further, the middle part of described floating pin is provided with groove, is provided with cylinder in described second mounting groove, and described cylinder stretches in described groove the motion amplitude blocking the floating pin of pin adjustment that floats.
The beneficial effect of above-mentioned further scheme is adopted to be: avoid pin disengaging second cell body that floats, improve the security performance of measurement, parts are also not easily lost, convenient safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the enlarged diagram of local A in Fig. 1 of the present invention.
Piece mark explanation
1 locating piece
11 cylinders
12 fabrication holes
13 cascaded surfaces
14 second mounting grooves
2 float sells
21 grooves
3 elastic reset structures
4 sealing gaskets
41 air intake openings
5 O-ring seals
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this instructions can understand other advantages of the present invention and effect easily.
Notice, structure, ratio, size etc. that this instructions institute accompanying drawings illustrates, content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As depicted in figs. 1 and 2, airtight detection and location device of the present invention, comprise locating piece 1 and floating pin 2, the bottom of locating piece 1 is provided with the first mounting groove for installing sealing gasket 4, sealing gasket 4 adopts setting-in mode to be assemblied in the first mounting groove, sealing gasket 4 and the first mounting groove can adopt interference fit, or sealing gasket 4 adopts and has resilient material and make, and sealing gasket 4 and the first mounting groove inwall is fitted tightly and avoids Leakage Gas.The top of locating piece 1 is provided with the second mounting groove 14, first mounting groove and is communicated with by fabrication hole 12 with between the second mounting groove 14, and end and the excessive junction of fabrication hole 12 all adopt hermetically-sealed construction, avoid Leakage Gas.Sealing gasket 4 is provided with air intake opening 41, and gas is entered by air intake opening 41 and flow in fabrication hole 12, then enters in the second mounting groove 14.Floating pin 2 for detecting gas flow is arranged in the second mounting groove 14, and the pin 2 that floats be embedded floating pin, and floating pin 2 is responded to from the gas in fabrication hole 12, and the gas push pin 2 that floats moves upward.
As depicted in figs. 1 and 2, second mounting groove 14 is ladder-type structure, the pin 2 that floats stretches in the second mounting groove 14, and pin 2 lower end of floating is arranged with O-ring seal 5, and the cascaded surface 13 that the second mounting groove 14 is pushed down in the bottom of O-ring seal 5 makes the lower end of the second mounting groove 14 be sealing state, gas build in second mounting groove 13 to a certain extent time just promote floating pin 2 and move upward, O-ring seal 5 pin 2 that and then floats moves upward together.Float pin 2 and the second mounting groove 14 is installed for clearance fit, and employing clearance fit makes floating pin 2 can float when being subject to gas push.Float and be provided with elastic reset structure 3 between pin 2 and fabrication hole 12, elastic reset structure 3 is spring, and one end of spring is connected with floating pin 2, and the other end of spring is fixed in fabrication hole 12.When the cascaded surface 13 of the second mounting groove 14 pushed down by the O-ring seal 5 floated on pin 2, spring is compressive state or virgin state, when spring is compressive state, pressing spring under the Action of Gravity Field of floating pin 2, produce thrust upwards when gas forms air-flow, coordinate spring elastic force upwards upwardly floating pin 2 simultaneously; When spring is virgin state, under the effect of air-flow, promote floating pin 2 move upward, spring is stretched, and completes after measuring and stops gas input, at the pulling force of floating pin 2 and spring, floating pin 2 is resetted.Spring adopts former long status or compressive state that the pin 2 that floats all can be driven to move upward and reset, and improves the dirigibility of floating pin 2.
As depicted in figs. 1 and 2, the middle part of the pin 2 that floats is provided with groove 21, and groove 21 can for laterally running through the rectangular parallelepiped cell body of floating pin 2.Cylinder 11 is provided with in second mounting groove 14, cylinder 11 stretches in groove 21 motion amplitude blocking the floating pin 2 of floating pin 2 adjustment, float when moving upward to a certain extent under being subject to thrust gas and the common effect of spring force bottom pin 2, the bottom surface of groove 21 pushed down by cylinder 11, make floating pin 2 cannot continue upwards to float, the air-flow avoiding gas to be formed is excessive and make floating pin depart from locating piece 1, improves security performance.Pressure test device is arranged in locating piece, trace routine is preset according to the flow of gas and duration of ventilation pressure test device, if floating pin produces floating air pressure pick-up unit and just can not touch warning system in preset time range, otherwise, pressure test device then by detect signal feedback to extraneous warning system, illustrate that Product Assembly does not meet standard, poor air-tightness.Or the pin 2 that will float is connected with ambient pressure pick-up unit, it is qualified that the situation that the gas flow flowed into according to gas and time and floating pin 2 start to float carries out judging whether the equipment of detection assembles, and feed back to extraneous warning system.
The present invention is simple by structure, installation testing convenient, the dirigibility of floating pin 2 is improve by elastic reset structure 3, improve and measure the bubble-tight accuracy of wheel product, standard compliant wheel only needs sealing gasket sealing to reach process requirements, adopt this airtight detection and location device to avoid wheel product clamping deviation to cause equipment breakdown, improve security performance.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. an airtight detection and location device, it is characterized in that: comprise locating piece and the pin that floats, the bottom of described locating piece is provided with the first mounting groove for installing sealing gasket, described sealing gasket is provided with air intake opening, the top of described locating piece is provided with the second mounting groove, be communicated with by fabrication hole between described first mounting groove with described second mounting groove, floating pin for detecting gas flow is arranged in described second mounting groove, between described floating pin and described fabrication hole, elastic reset structure is installed, described second mounting groove is ladder-type structure, described floating pin stretches in described second mounting groove, and described floating pin lower end is arranged with O-ring seal, and the cascaded surface that described second mounting groove is pushed down in the bottom of O-ring seal makes the lower end of the second mounting groove be sealing state, described floating pin is embedded floating pin.
2. airtight detection and location device according to claim 1, is characterized in that: described floating pin and described second mounting groove are that clearance fit is installed.
3. airtight detection and location device according to claim 1, is characterized in that: described elastic reset structure is spring, one end of spring is connected with described floating pin, and the other end of described spring is fixed in described fabrication hole.
4. airtight detection and location device according to claim 3, it is characterized in that: when the cascaded surface of described second mounting groove pushed down by described O-ring seal, described spring is compressive state.
5. airtight detection and location device according to claim 1, is characterized in that: described sealing gasket adopts setting-in mode to be assemblied in described first mounting groove.
6. airtight detection and location device according to claim 1, is characterized in that: the middle part of described floating pin is provided with groove, is provided with cylinder in described second mounting groove, and described cylinder stretches in described groove the motion amplitude blocking the floating pin of pin adjustment that floats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778342.0A CN105258868A (en) | 2015-11-13 | 2015-11-13 | Air tightness detecting and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778342.0A CN105258868A (en) | 2015-11-13 | 2015-11-13 | Air tightness detecting and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105258868A true CN105258868A (en) | 2016-01-20 |
Family
ID=55098646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778342.0A Pending CN105258868A (en) | 2015-11-13 | 2015-11-13 | Air tightness detecting and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105258868A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203772456U (en) * | 2014-04-19 | 2014-08-13 | 中信戴卡股份有限公司 | Pressure detection device |
| CN203772502U (en) * | 2014-03-25 | 2014-08-13 | 中信戴卡股份有限公司 | Rotary-type wheel airtightness detection machine |
| CN104440188A (en) * | 2014-12-02 | 2015-03-25 | 重庆戴卡捷力轮毂制造有限公司 | Positioning device |
| CN104614134A (en) * | 2015-02-03 | 2015-05-13 | 中信戴卡股份有限公司 | Aluminum alloy hub air-tightness detection device and hub air-tightness detection method |
| CN105043691A (en) * | 2015-09-07 | 2015-11-11 | 安徽江淮汽车股份有限公司 | Automatic gearbox shell oil duct air tightness detection tool |
-
2015
- 2015-11-13 CN CN201510778342.0A patent/CN105258868A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203772502U (en) * | 2014-03-25 | 2014-08-13 | 中信戴卡股份有限公司 | Rotary-type wheel airtightness detection machine |
| CN203772456U (en) * | 2014-04-19 | 2014-08-13 | 中信戴卡股份有限公司 | Pressure detection device |
| CN104440188A (en) * | 2014-12-02 | 2015-03-25 | 重庆戴卡捷力轮毂制造有限公司 | Positioning device |
| CN104614134A (en) * | 2015-02-03 | 2015-05-13 | 中信戴卡股份有限公司 | Aluminum alloy hub air-tightness detection device and hub air-tightness detection method |
| US20160223425A1 (en) * | 2015-02-03 | 2016-08-04 | Citic Dicastal Co., Ltd | Air tightness detection device for aluminum alloy wheel hub and method for detecting air tightness of wheel hub |
| CN105043691A (en) * | 2015-09-07 | 2015-11-11 | 安徽江淮汽车股份有限公司 | Automatic gearbox shell oil duct air tightness detection tool |
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Application publication date: 20160120 |
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