CN103438051B - A kind of cylinder with unbiased shifting proximity switch - Google Patents
A kind of cylinder with unbiased shifting proximity switch Download PDFInfo
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- CN103438051B CN103438051B CN201310330089.3A CN201310330089A CN103438051B CN 103438051 B CN103438051 B CN 103438051B CN 201310330089 A CN201310330089 A CN 201310330089A CN 103438051 B CN103438051 B CN 103438051B
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- proximity switch
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- slot
- pressing plate
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Abstract
nullThe invention discloses a kind of cylinder with unbiased shifting proximity switch，On the premise of not changing existing product cylinder structure,Utilize the existing T-slot of cylinder,Give up the fixing device of proximity switch in prior art,Use external-compression type fixing device that proximity switch is fixed，The external-compression type fixing device that the present invention provides includes pressing plate and certain thickness elastomer，Its center platen and elastomer can be processed the most voluntarily,And with bolt plug in T-slot,Utilize nut、Spring washer、Pressing plate and elastomer are pressed on proximity switch by plain cushion,Use the moment fastening nut of torque wrench 20Nm，Until elastomer flattens completely，Proximity switch is enable fully to fix，By repeatedly testing，What the present invention provided has the cylinder of unbiased shifting proximity switch，The fixed form of its proximity switch is reliable,Any skew does not occur during cylinder start，And then ensure that the accuracy of signal.
Description
Technical field
The present invention relates to a kind of cylinder with unbiased shifting proximity switch.
Background technology
Along with the fast development of modern industry, people are more and more higher to the requirement of cylinder, and cylinder does reciprocal straight
Two classes that are that line moves and that do reciprocally swinging.Typical air cylinder structure includes cylinder barrel, end cap, piston, piston
Bar and sealing member, the internal diameter size of cylinder barrel represents the size of cylinder power output；End cap is provided with intake and exhaust and leads to
Mouthful, have is also provided with buffer gear in end cap, and bar side end cap is provided with sealing ring and dust ring, to prevent
Outwards leaking gas at piston rod and prevent external dust to be mixed in cylinder, bar side end cap is provided with fairlead, to carry
The guiding accuracy of high cylinder, bears lateral load a small amount of on piston rod, curved under reducing when piston rod stretches out
Amount, extends cylinder service life, and fairlead generally uses oil-impregnated sintered alloy, lean forward copper casting, end cap mistake
Removing conventional malleable cast iron, for alleviating weight antirust, often use aluminium alloy compression casting, small-bore cylinder has use pyrite
Material；Piston is the part that is stressed in cylinder, for preventing the two mutual gas blowby in chamber about piston, is provided with work
Plug sealing ring, the wear ring on piston can improve the guidance quality of cylinder, reduces the abrasion of piston packing, subtracts
Few frictional resistance, wear ring length uses the materials such as polyurethane, politef, folder cloth synthetic resin, piston
Width determined by sealing ring size and necessary slipper length, slipper is the shortest, easily causes early
Phase, abrasion was with stuck, and the material Aluminium Alloys in Common Use of piston and cast iron, the piston of small-sized cylinder has pyrite to make；
Piston rod is most important stress part in cylinder, generally use high-carbon steel, surface through hard chrome plating process or
Use rustless steel, with anticorrosion, and improve the wearability of sealing ring；Parts at revolution or reciprocating motion are close
Envelope is referred to as movable sealing, and the sealing of static element part is referred to as static seal.
In air cylinder structure, in order to detect the position of piston movement, typically use proximity switch.Proximity switch
It is that one detects with realization in industrial automation control system, controls and the most contactless with output element
The novel switched element changed, when proximity switch is close to object certain distance, i.e. sends control signal.Existing
Having in air cylinder structure, its supporting proximity switch is arranged to be fixed in cylinder T-slot, this fixing side
Formula makes proximity switch in the course of the work be easy to loosen, and in turn results in the skew of proximity switch position, signal
Lose, it is impossible to ensure normally to work.
Therefore, those skilled in the art is devoted to develop a kind of cylinder with unbiased shifting proximity switch.
Summary of the invention
Because the drawbacks described above of prior art, the invention provides a kind of gas with unbiased shifting proximity switch
Cylinder.The ultimate principle of the present invention is: proximity switch is the pith in cylinder, is also detection cylinder piston
The core parts of position, are directly connected to the working effect of cylinder, in order to ensure that proximity switch is in cylinder start
Middle holding position does not offsets, it is ensured that the accuracy of signal, and the present invention gives up the fixed form of existing proximity switch,
Use a kind of new external-compression type fixing device that proximity switch is fixed, further to the sensitive surface of switch
Direct relation controls effect, and the sensitive surface switched without biased contact is studied by the present invention further.
The invention provides a kind of cylinder proximity switch fixing device, proximity switch is positioned at the T-slot of cylinder,
Described fixing device includes that press strip and elastomer, described press strip and described elastomer are positioned at described T-slot,
Described elastomer is arranged to push down proximity switch, and described press strip is arranged to push down described elastomer, described
Press strip and described elastomer are bolted.
Further, described elastomer material is polrvinyl chloride.
Further, described elastomer material is soft PVC.
Further, described elastomer thickness is 1.5mm～2mm.
The invention provides a kind of cylinder with unbiased shifting proximity switch, described cylinder has first close to opening
Closing and the second proximity switch, wherein, described first proximity switch is positioned at the first T-slot of cylinder, described
First proximity switch is fixed by the first pressing plate and the first elastomer, and described first elastomer is set to be positioned at first
The first proximity switch is stated in the intrinsic pressure residence of T-slot, and described first pressing plate is set to be positioned at the first T-slot and pushes down
Described first elastomer, described first switch, the first elastomer and the first pressing plate are by the hex bolts of M4*16
Fixing；Described second proximity switch is positioned at the second T-slot of cylinder, described second T-slot and described
One T-slot is positioned at the homonymy of cylinder, and described second proximity switch is fixed by the second pressing plate and the second elastomer,
Described second elastomer is set to be positioned at the second intrinsic pressure residence of T-slot and states the second proximity switch, described second pressure
Plate is set to be positioned at the second intrinsic pressure residence of T-slot and states the second elastomer, described second switch, the second elastomer
Fix by the hex bolts of M4*16 with the second pressing plate.
Further, the sensitive surface of described first proximity switch and the second proximity switch is rectangle, induction area
For 4mm*4mm.
Further, described first proximity switch and the second proximity switch are Festo AND series
SMT-8M-PS-24V-K-2,5-OE, response time is 3.4ms.
Further, described first proximity switch and the second proximity switch are inductance approach switch.
Further, described first elastomer and described second elastomer material are polrvinyl chloride.
Further, described first elastomer and described second elastomer material are soft PVC.
Further, described first elastomer and described second elastomer thickness are 1.5mm～2mm.
Further, described cylinder is Festo AND series, and cylinder diameter is the cylinder of 32mm.
What the present invention provided has the cylinder of unbiased shifting proximity switch, is not changing existing product cylinder structure
Under premise, utilize the existing T-slot of cylinder, give up the fixing device of proximity switch in prior art, outside employing
Proximity switch is fixed by pressure type fixing device, the present invention provide external-compression type fixing device include pressing plate and
Certain thickness elastomer, its center platen and elastomer can be processed the most voluntarily, and use bolt
Plug, in T-slot, utilizes nut, spring washer, plain cushion pressing plate and elastomer to be pressed on proximity switch, uses and turns round
The moment fastening nut of square spanner 20Nm, until elastomer flattens completely, enables proximity switch abundant
Fixing, by repeatedly testing, what the present invention provided has the cylinder of unbiased shifting proximity switch, and it is close to opening
The fixed form closed is reliable, any skew does not occur, and then ensure that signal during cylinder start
Accuracy.
Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is described further,
To be fully understood from the purpose of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the upward view of the cylinder with unbiased shifting proximity switch of a preferred embodiment of the present invention.
Fig. 2 is the front view in Fig. 1 with the cylinder that unbiased moves proximity switch.
Fig. 3 is the side view in Fig. 1 with the cylinder that unbiased moves proximity switch.
Fig. 4 is the magnified partial view of Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the solution of the present invention is illustrated.
In accompanying drawing, 1 represents cylinder, and 2 represent ears ring seat, and 3 represent oscillating bearing, and 4 represent straight joint,
5 expression proximity switches, 6 expression pressing plates, 7 expression elastomers, 8 expression bolts, 9 expression plain washers, 10
Representing elastic washer, 11 represent nut.
Fig. 1 is the upward view of the cylinder with unbiased shifting proximity switch in presently preferred embodiments of the present invention, as
Shown in Fig. 1, in a preferred embodiment of the present invention, cylinder is Festo AND series, and cylinder diameter is 32mm
Cylinder, have unbiased move proximity switch cylinder include proximity switch, pressing plate, elastomer, pressing plate, bullet
Gonosome and proximity switch are respectively positioned in the T-slot of cylinder, and pressing plate and elastomer are set to push down proximity switch also
Being bolted, specifically, elastomer is arranged to push down proximity switch, and press strip is arranged to push down bullet
Gonosome, proximity switch, elastomer and press strip are bolted.The number of proximity switch is 2, respectively position
In 2 T-slot of homonymy, for detecting two positions of cylinder piston, i.e. piston is at cylinder motion
Upper and the next.Each proximity switch all uses pressing plate and elastomer to fix, and elastomer is the soft water of PVC
Brilliant plate, thickness is 2mm.Each proximity switch is inductance approach switch, and its sensitive surface is rectangle, sense
Answering area is 4mm*4mm.In a preferred embodiment of the present invention, proximity switch is Festo AND
Series SMT-8M-PS-24V-K-2,5-OE, response time is 3.4ms.
Fig. 2 is the front view in Fig. 1 with the cylinder that unbiased moves proximity switch.Fig. 3 is to have nothing in Fig. 1
The side view of the cylinder of skew proximity switch.Fig. 4 is the magnified partial view of Fig. 3.As it can be seen, pressing plate and
Elastomer is set to push down proximity switch and be bolted, and in order to further enhance fixed effect, adopts
Pressing plate and elastomer being pressed on proximity switch with bolt, plain washer, elastic washer and nut, elastomer is complete
Total head is put down, and enables proximity switch the most fixing.In a preferred embodiment of the present invention, bolt uses
The hex bolts of M4*16.
What the present invention provided has the cylinder of unbiased shifting proximity switch, is not changing existing product cylinder structure
Under premise, utilize the existing T-slot of cylinder, give up the fixing device of proximity switch in prior art, outside employing
Proximity switch is fixed by pressure type fixing device, the present invention provide external-compression type fixing device include pressing plate and
Certain thickness elastomer, its center platen and elastomer can be processed the most voluntarily, and with special
Screw plug, in T-slot, utilizes nut pressing plate and elastomer to be pressed on proximity switch, enables proximity switch
Fully fixing, through engineering test, what the present invention provided has the cylinder of unbiased shifting proximity switch, and it connects
The fixed form of nearly switch is reliable, any skew does not occur, and then ensure that letter during cylinder start
Number accuracy, be beneficial to control.
The preferred embodiment of the present invention described in detail above.Should be appreciated that the ordinary skill of this area without
Creative work just can make many modifications and variations according to the design of the present invention.Therefore, all in the art
Technical staff passes through logical analysis, reasoning, or a limited experiment the most on the basis of existing technology
Available technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (1)
1. having unbiased and move a cylinder for proximity switch, described cylinder has the first proximity switch and second and connects
Nearly switch, it is characterised in that described first proximity switch is positioned at the first T-slot of cylinder, institute
Stating the first proximity switch to be fixed by the first pressing plate and the first elastomer, described first elastomer is set to
Being positioned at the first intrinsic pressure residence of T-slot and state the first proximity switch, described first pressing plate is set to be positioned at
The first elastomer, described first proximity switch, the first elastomer and are stated in the one intrinsic pressure residence of T-slot
One pressing plate is fixed by the hex bolts of M4*16；Described second proximity switch is positioned at the 2nd T of cylinder
In type groove, described second T-slot and described first T-slot are positioned at the homonymy of cylinder, and described second
Proximity switch is fixed by the second pressing plate and the second elastomer, and described second elastomer is set to be positioned at
The second proximity switch is stated in the two intrinsic pressure residences of T-slot, and it is T-shaped that described second pressing plate is set to be positioned at second
The second elastomer, described second proximity switch, the second elastomer and the second pressing plate are stated in the intrinsic pressure residence of groove
Fixed by the hex bolts of M4*16；Described first proximity switch and the sensitive surface of the second proximity switch
For rectangle, induction area is 4mm*4mm；Described first proximity switch and the second proximity switch are
Festo AND series inductance formula proximity switch SMT-8M-PS-24V-K-2,5-OE, response time is
3.4ms；Described cylinder is Festo AND series, and cylinder diameter is the cylinder of 32mm；Described first is elastic
Body and described second elastomer material are polrvinyl chloride；Described first elastomer and described second elasticity
Body thickness is 1.5mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330089.3A CN103438051B (en) | 2013-07-31 | 2013-07-31 | A kind of cylinder with unbiased shifting proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330089.3A CN103438051B (en) | 2013-07-31 | 2013-07-31 | A kind of cylinder with unbiased shifting proximity switch |
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| Publication Number | Publication Date |
|---|---|
| CN103438051A CN103438051A (en) | 2013-12-11 |
| CN103438051B true CN103438051B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310330089.3A Active CN103438051B (en) | 2013-07-31 | 2013-07-31 | A kind of cylinder with unbiased shifting proximity switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103727912B (en) * | 2013-12-16 | 2017-01-04 | 安徽华印机电股份有限公司 | Thickness detection apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19925993A1 (en) * | 1999-06-08 | 2000-12-14 | Turck Werner Kg | Proximity switch for fixing in T=slot e.g. for pneumatic cylinder, has housing which can be released or reattached while fixing member is clamped in T=slot |
| CN201568401U (en) * | 2009-12-14 | 2010-09-01 | 安东石油技术（集团）有限公司 | Piston position detector of hydraulic cylinder |
| CN202348818U (en) * | 2011-12-01 | 2012-07-25 | 烟台未来自动装备有限责任公司 | Oil cylinder with proximity switch |
| CN202360506U (en) * | 2011-11-23 | 2012-08-01 | 成都航天万欣科技有限公司 | Plug type connecting device having position detection function and being used for hydraulic cylinder |
-
2013
- 2013-07-31 CN CN201310330089.3A patent/CN103438051B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19925993A1 (en) * | 1999-06-08 | 2000-12-14 | Turck Werner Kg | Proximity switch for fixing in T=slot e.g. for pneumatic cylinder, has housing which can be released or reattached while fixing member is clamped in T=slot |
| CN201568401U (en) * | 2009-12-14 | 2010-09-01 | 安东石油技术（集团）有限公司 | Piston position detector of hydraulic cylinder |
| CN202360506U (en) * | 2011-11-23 | 2012-08-01 | 成都航天万欣科技有限公司 | Plug type connecting device having position detection function and being used for hydraulic cylinder |
| CN202348818U (en) * | 2011-12-01 | 2012-07-25 | 烟台未来自动装备有限责任公司 | Oil cylinder with proximity switch |
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| Publication number | Publication date |
|---|---|
| CN103438051A (en) | 2013-12-11 |
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| CB03 | Change of inventor or designer information |
Inventor after: Peng Feng Inventor after: Fu Handong Inventor after: Chen Xiaoying Inventor after: Sun Jing Inventor before: Cao Cenmin Inventor before: Fu Handong Inventor before: Ge Lin Inventor before: Jin Yi |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200526 Address after: 2699 bingang Avenue, Binjiang street, Haimen City, Nantong City, Jiangsu Province Patentee after: Ruifeng automation technology Haimen Co., Ltd Address before: 201821, room 2, building 1630, 1008 Yecheng Road, Jiading District Industrial Zone, Shanghai, China Patentee before: SHANGHAI REFINE AUTOMATION SYSTEMS Co.,Ltd. |