CN103438051A - Fixing device for proximity switches of cylinder and cylinder with non-offset proximity switch - Google Patents
Fixing device for proximity switches of cylinder and cylinder with non-offset proximity switch Download PDFInfo
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- CN103438051A CN103438051A CN2013103300893A CN201310330089A CN103438051A CN 103438051 A CN103438051 A CN 103438051A CN 2013103300893 A CN2013103300893 A CN 2013103300893A CN 201310330089 A CN201310330089 A CN 201310330089A CN 103438051 A CN103438051 A CN 103438051A
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- shaped groove
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Abstract
The invention discloses a fixing device for proximity switches of a cylinder, wherein the proximity switches are located in a T-shaped slot of the cylinder; the fixing device comprises depression bars and elastic bodies, wherein the depression bars and the elastic bodies are located in the T-shaped slot, the elastic bodies are set to press the proximity switches, the depression bars are set to press the elastic bodies and the depression bars and the elastic bodies are fixed through bolts. According to the fixing device for the proximity switches of the cylinder provided by the invention, under the premise that the product structure of the existing cylinder is not changed, the existing T-shaped slot of the cylinder is utilized, the fixing device for the proximity switches in the prior art is discarded, and the proximity switches are fixed by an external pressure fixing device, so that the fixing ways of the proximity switches are reliable; and any offset is not generated in the cylinder actuating process, so that the accuracy of signals can be guaranteed.
Description
Technical field
The present invention relates to a kind of fixing device, relate in particular to a kind of cylinder approach switch fixing device and there is the cylinder without the skew approach switch.
Background technique
Along with the fast development of modern industry, people are more and more higher to the requirement of cylinder, and cylinder has does two classes linear reciprocating motion and that do reciprocally swinging.Typical air cylinder structure comprises cylinder barrel, end cap, piston, piston rod and Sealing, and the internal diameter size of cylinder barrel has represented the size of cylinder ouput force, end cap is provided with the intake and exhaust port, what have also is provided with damping mechanism in end cap, the bar side end cap is provided with seal ring and dust ring, outwards leak gas and prevent that external dust from sneaking in cylinder from piston rod preventing, the bar side end cap is provided with guide sleeve, to improve the guiding accuracy of cylinder, bear transverse load a small amount of on piston rod, lower curved amount when reducing piston rod and stretching out, extend cylinder working life, guide sleeve uses oil-impregnated sintered alloy usually, copper casting leans forward, end cap used malleable cast iron, for weight reduction antirust, the normal aluminium alloy compression casting that uses, small-bore cylinder has the use brass material, piston is the part that is stressed in cylinder, for preventing the piston left and right two mutual gas blowbies in chamber, be provided with piston packing, wear ring on piston can improve the guidance quality of cylinder, reduce the abrasion of piston packing, capable of reducing friction resistance, the long materials such as polyurethane, teflon, folder cloth synthetic resin that use of wear ring, the width of piston is decided by seal ring size and necessary sliding parts length, sliding parts is too short, easily cause premature wear and stuck, material Aluminium Alloys in Common Use and the cast iron of piston, the piston of small-sized cylinder has brass to make, piston rod is most important stressed part in cylinder, usually use high carbon steel, surface through hard chromium plating process or use stainless steel, with corrosion protection, and improve the wear resistance of seal ring, the parts sealing of revolution or to-and-fro motion place is called motive sealing, and the sealing of static element part is called static seal.
In air cylinder structure, in order to detect the position of piston movement, generally adopt approach switch.Approach switch be a kind of for industrial automation control system with realize to detect, control and with the novel switched element that the overall oncontacting of output element is revealed, when approach switch approaches the object certain distance, send control signal.In existing air cylinder structure, its supporting approach switch is set to be fixed in the T-shaped groove of cylinder, and this means of fixation makes approach switch in the course of the work be easy to become flexible, and then causes the skew of approach switch position, dropout, can't guarantee to work.
Therefore, those skilled in the art is devoted to develop a kind of cylinder approach switch fixing device and have the cylinder without the skew approach switch.
Summary of the invention
Because the above-mentioned defect of prior art the invention provides a kind of cylinder approach switch fixing device and has the cylinder without the skew approach switch.Basic principle of the present invention is: approach switch is the pith in cylinder, also the core parts that detect the cylinder piston position, be directly connected to the working effect of cylinder, in order to guarantee that approach switch is not offset holding position in the cylinder start, guarantee the accuracy of signal, the present invention gives up the means of fixation of existing approach switch, adopt a kind of new external-compression type fixing device to be fixed approach switch, further the sensitive surface direct relation of approach switch is controlled effect, and the present invention further is studied the sensitive surface without the skew contact-making switch.
The invention provides a kind of cylinder approach switch fixing device, approach switch is positioned at the T-shaped groove of cylinder, described fixing device comprises press strip and elastomer, described press strip and described elastomer are positioned at described T-shaped groove, described elastomer is set to push down approach switch, described press strip is set to push down described elastomer, and described press strip and described elastomer are bolted.
Further, described elastomer material is PVC＝polyvinyl chloride.
Further, described elastomer material is soft PVC.
Further, described elastomer thickness is 1.5mm～2mm.
The invention provides a kind of cylinder had without the skew approach switch, described cylinder has the first approach switch and the second approach switch, wherein, described the first approach switch is positioned at the first T-shaped groove of cylinder, described the first approach switch is fixed by the first pressing plate and the first elastomer, described the first elastomer is set to be positioned at the first T-shaped groove and pushes down described the first approach switch, described the first pressing plate is set to be positioned at the first T-shaped groove and pushes down described the first elastomer, and described the first switch, the first elastomer and the first pressing plate are fixed by the hex head bolt of M4*16; Described the second approach switch is positioned at the second T-shaped groove of cylinder, the described second T-shaped groove and the described first T-shaped groove are positioned at the homonymy of cylinder, described the second approach switch is fixed by the second pressing plate and the second elastomer, described the second elastomer is set to be positioned at the second T-shaped groove and pushes down described the second approach switch, described the second pressing plate is set to be positioned at the second T-shaped groove and pushes down described the second elastomer, and described second switch, the second elastomer and the second pressing plate are fixed by the hex head bolt of M4*16.
Further, the sensitive surface of described the first approach switch and the second approach switch is rectangle, and induction area is 4mm*4mm.
Further, described the first approach switch and the second approach switch are Festo AND series SMT-8M-PS-24V-K-2,5-OE, and the response time is 3.4ms.
Further, described the first approach switch and the second approach switch are inductance approach switch.
Further, described the first elastomer and described the second elastomer material are PVC＝polyvinyl chloride.
Further, described the first elastomer and described the second elastomer material are soft PVC.
Further, described the first elastomer and described the second elastomer thickness are 1.5mm～2mm.
Further, described cylinder is Festo AND series, the cylinder that cylinder diameter is 32mm.
The cylinder had without the skew approach switch provided by the invention, under the prerequisite that does not change existing product cylinder structure, utilize the existing T-shaped groove of cylinder, the fixing device of giving up approach switch in prior art, adopt the external-compression type fixing device to be fixed approach switch, external-compression type fixing device provided by the invention comprises pressing plate and certain thickness elastomer, its center platen and elastomer can be processed according to actual needs voluntarily, and with the bolt plug in T-shaped groove, utilize nut, the bullet pad, plain cushion is pressed in pressing plate and elastomer on approach switch, use the moment fastening nut of torque wrench with 20Nm, until elastomer flattens fully, approach switch can fully be fixed, by experiment repeatedly, the cylinder had without the skew approach switch provided by the invention, the means of fixation of its approach switch is reliable, in cylinder start process, any skew does not appear, and then guaranteed the accuracy of signal.
Technique effect below with reference to accompanying drawing to design of the present invention, concrete structure and generation is described further, to understand fully purpose of the present invention, feature and effect.
The accompanying drawing explanation
Fig. 1 is the worm's eye view without the cylinder of skew approach switch that has of a preferred embodiment of the present invention.
Fig. 2 is the front view had in Fig. 1 without the cylinder of skew approach switch.
Fig. 3 is the side view had in Fig. 1 without the cylinder of skew approach switch.
The part enlarged view that Fig. 4 is Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the solution of the present invention is described.
In accompanying drawing, 1 means cylinder, and 2 mean the ears ring seat, and 3 mean joint shaft bearing, and 4 mean straight joint, and 5 mean approach switch, and 6 mean pressing plate, and 7 mean elastomer, and 8 mean bolt, and 9 mean plain washer, and 10 mean elastic washer, and 11 mean nut.
Fig. 1 is the worm's eye view without the cylinder of skew approach switch that has in preferred embodiment of the present invention, as shown in Figure 1, in a preferred embodiment of the present invention, cylinder is Festo AND series, the cylinder that cylinder diameter is 32mm, the cylinder had without the skew approach switch comprises approach switch, pressing plate, elastomer, pressing plate, elastomer and approach switch all are positioned at the T-shaped groove of cylinder, pressing plate and elastomer are set to push down approach switch and are bolted, particularly, elastomer is set to push down approach switch, press strip is set to push down elastomer, approach switch, elastomer and press strip are bolted.The number of approach switch is 2, lays respectively in 2 T-shaped grooves of homonymy, and for detection of two positions of cylinder piston, what piston moved in cylinder is upper and the next.Each approach switch all adopts pressing plate and elastomer to fix, and elastomer is the soft crystal slab of PVC, and thickness is 2mm.Each approach switch is inductance approach switch, and its sensitive surface is rectangle, and induction area is 4mm*4mm.In a preferred embodiment of the present invention, approach switch is Festo AND series SMT-8M-PS-24V-K-2,5-OE, and the response time is 3.4ms.
Fig. 2 is the front view had in Fig. 1 without the cylinder of skew approach switch.Fig. 3 is the side view had in Fig. 1 without the cylinder of skew approach switch.The part enlarged view that Fig. 4 is Fig. 3.As shown in the figure, pressing plate and elastomer are set to push down approach switch and are bolted, and, in order further to strengthen fixed effect, adopt bolt, plain washer, elastic washer and nut that pressing plate and elastomer are pressed on approach switch, elastomer flattens fully, makes the approach switch can be fully fixing.In a preferred embodiment of the present invention, bolt adopts the hex head bolt of M4*16.
The cylinder had without the skew approach switch provided by the invention, under the prerequisite that does not change existing product cylinder structure, utilize the existing T-shaped groove of cylinder, the fixing device of giving up approach switch in prior art, adopt the external-compression type fixing device to be fixed approach switch, external-compression type fixing device provided by the invention comprises pressing plate and certain thickness elastomer, its center platen and elastomer can be processed according to actual needs voluntarily, and with the special screw plug in T-shaped groove, utilize nut that pressing plate and elastomer are pressed on approach switch, approach switch can fully be fixed, through engineering test, the cylinder had without the skew approach switch provided by the invention, the means of fixation of its approach switch is reliable, in cylinder start process, any skew does not appear, and then guaranteed the accuracy of signal, be beneficial to control.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that related domain just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technician in the art, all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (8)
1. a cylinder approach switch fixing device, approach switch is positioned at the T-shaped groove of cylinder, it is characterized in that, described fixing device comprises press strip and elastomer, described press strip and described elastomer are positioned at described T-shaped groove, described elastomer is set to push down approach switch, and described press strip is set to push down described elastomer, and described press strip and described elastomer are bolted; Described elastomer thickness is 1.5mm～2mm.
2. cylinder approach switch fixing device as claimed in claim 1, is characterized in that, described elastomer material is PVC＝polyvinyl chloride.
3. one kind has without the cylinder that is offset approach switch, described cylinder has the first approach switch and the second approach switch, it is characterized in that, described the first approach switch is positioned at the first T-shaped groove of cylinder, described the first approach switch is fixed by the first pressing plate and the first elastomer, described the first elastomer is set to be positioned at the first T-shaped groove and pushes down described the first approach switch, described the first pressing plate is set to be positioned at the first T-shaped groove and pushes down described the first elastomer, and described the first switch, the first elastomer and the first pressing plate are fixed by the hex head bolt of M4*16; Described the second approach switch is positioned at the second T-shaped groove of cylinder, the described second T-shaped groove and the described first T-shaped groove are positioned at the homonymy of cylinder, described the second approach switch is fixed by the second pressing plate and the second elastomer, described the second elastomer is set to be positioned at the second T-shaped groove and pushes down described the second approach switch, described the second pressing plate is set to be positioned at the second T-shaped groove and pushes down described the second elastomer, and described second switch, the second elastomer and the second pressing plate are fixed by the hex head bolt of M4*16; The sensitive surface of described the first approach switch and the second approach switch is rectangle, and induction area is 4mm*4mm.
4. the cylinder had without the skew approach switch as claimed in claim 3, is characterized in that, described the first approach switch and the second approach switch are Festo AND series SMT-8M-PS-24V-K-2,5-OE, and the response time is 3.4ms.
5. the cylinder had without the skew approach switch as claimed in claim 3, is characterized in that, described the first approach switch and the second approach switch are inductance approach switch.
6. the cylinder had without the skew approach switch as claimed in claim 3, is characterized in that, described the first elastomer and described the second elastomer material are PVC＝polyvinyl chloride.
7. the cylinder had without the skew approach switch as claimed in claim 3, is characterized in that, described the first elastomer and described the second elastomer thickness are 1.5mm～2mm.
8. the cylinder had without the skew approach switch as claimed in claim 3, is characterized in that, described cylinder is Festo AND series, the cylinder that cylinder diameter is 32mm.
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 |
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| 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 |
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| CN103438051A true CN103438051A (en) | 2013-12-11 |
| CN103438051B CN103438051B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727912A (en) * | 2013-12-16 | 2014-04-16 | 安徽华印机电股份有限公司 | Thickness detecting device |
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727912A (en) * | 2013-12-16 | 2014-04-16 | 安徽华印机电股份有限公司 | Thickness detecting device |
| CN103727912B (en) * | 2013-12-16 | 2017-01-04 | 安徽华印机电股份有限公司 | Thickness detection apparatus |
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| Publication number | Publication date |
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| CN103438051B (en) | 2016-12-07 |
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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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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. |