CN201696390U - Air cylinder or hydraulic cylinder with switching signal feedback device - Google Patents
Air cylinder or hydraulic cylinder with switching signal feedback device Download PDFInfo
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- CN201696390U CN201696390U CN2010202354968U CN201020235496U CN201696390U CN 201696390 U CN201696390 U CN 201696390U CN 2010202354968 U CN2010202354968 U CN 2010202354968U CN 201020235496 U CN201020235496 U CN 201020235496U CN 201696390 U CN201696390 U CN 201696390U
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- cylinder
- signal feedback
- switching signal
- push rod
- limit switch
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Abstract
The utility model discloses an air cylinder or hydraulic cylinder with a switching signal feedback device. The air cylinder or hydraulic cylinder comprises a cylinder body and a cylinder lever, and also comprises a pair of switching signal feedback devices detecting the position of the cylinder lever, wherein the pair of switching signal feedback devices are respectively connected to the front end cap and the rear end cap of the cylinder body. Through the contact between the mandril in the switching signal feedback device and a piston, an overtravel-limit switch is triggered, the aim of mastering the transmission process at any time by using the self structure of the cylinder body is achieved, the trouble and disadvantage caused by increasing a stroke control system on the transmission structure at later stage are avoided, the using process is simplified and the using efficiency is improved. A protective cover installed on the end cap can effectively prevent the external environment from generating adverse effect on the feedback result, and ensure the safe and reliable usage of the feedback device. The whole structure has accurate signal feedback, is convenient for transmission and flexible for use, and can be widely applied to the air cylinder or hydraulic cylinder of various types of power transmission.
Description
Technical field
The utility model relates to a kind of cylinder or fluid cylinder that can carry out the switching signal feedback to the motion of cylinder bar, belongs to the mechanical transmission field.
Background technique
At present, domestic straight journey cylinder is divided into two kinds of cylinder and fluid cylinders by driving mode, and this two cylinders realize that mainly driving arrangement or component in the to-and-fro motion of setting range, finish transmission of power.In order to grasp the moving situation of cylinder or fluid cylinder accurately and timely, avoid the generation of unnecessary situation, the cylinder bar that moves is generally all needed to carry out position probing.Now Chang Yong detection mode has three kinds of mechanical type, electromagnetic type and infrared types, its basic comprising is that this class detection device is fixedly connected on the cylinder body transmission device or component in addition, motion by transmission device or component produces feedback signal by detection device, to grasp and to understand the motion conditions of cylinder bar, help the operator in time to make and judge or adjustment.But the mounting point of detection device, be subjected to the influence of transmission device or component running environment bigger, as hot environment under the influence of infrared type detection device, the complicated electrical signal environment to interference of electromagnetic type detection device etc., its result makes the service behaviour and the unstable working condition of detection device, the use accuracy rate reduces, even testing result caused interference, testing process can not normally be carried out.How to avoid the generation of analogue, improve the Environmental Conditions and the service property (quality) of detection device, just become problem to be solved in the utility model.
Summary of the invention
In view of above-mentioned existing situation, the utility model aims to provide a kind of cylinder body that is connected with the switching signal feedback means, to avoid of the influence of existing transmission link to signal feedback device, guarantee testing process can be smoothly, carry out accurately, easily.
The utility model is achieved through the following technical solutions:
A kind of cylinder or fluid cylinder that has the switching signal feedback means comprises cylinder body and cylinder bar, also comprises the pair of switches signal feedback device that cylinder bar position is surveyed, and the pair of switches signal feedback device is installed in respectively on the front cover and rear end cover of cylinder body.
Described switching signal feedback means comprises position limit switch and stroke trigger, and position limit switch is fixed on the end cap outside, and the stroke trigger passes the through hole on the end cap, is installed between the piston in position limit switch and the cylinder body.
Described stroke trigger comprises push rod, push rod Sealing and Returnning spring, the push rod Sealing comprises seal ring and catch, after push rod passed through hole on the end cap, seal ring was sealed in the inboard of end cap through hole by catch, and Returnning spring is connected on the push rod and push rod is resetted.
Described push rod the inner is provided with boss, and Returnning spring is compressed between boss and the catch.
Described catch and end cap are structure as a whole.
Described Returnning spring is connected between push rod outer end and the end cap with extended state.
Described position limit switch comprises mechanical stroke switch, magnetic induction position limit switch or infrared rays position limit switch.
Described switching signal feedback means also comprises protective housing, and protective housing covers on position limit switch and the stroke trigger, and protective housing is provided with external cooling air intake and power supply and signal cable interface.
Cylinder or the fluid cylinder that has the switching signal feedback means described in the utility model, utilization increases the switching signal feedback means on the front cover of cylinder body and rear end cover, by the push rod in the pushing switch signal feedback device when switch puts in place of the piston in cylinder or the fluid cylinder, utilize push rod to eject, trigger position limit switch, reach the purpose of utilizing the cylinder body self structure to grasp transmission process at any time, avoided the later stage on drive mechanism, to increase trouble and the drawback that travel control system brings again, simplify the using process of cylinder or fluid cylinder, improved utilization efficiency and convenience.And be installed in protective housing on the end cap, and also can effectively avoid external environment that feedback result is had a negative impact, the external cooling air intake that himself carries, power supply and signal cable interface have guaranteed safe, the reliable use of feedback means.The total signal feed back is accurate, transmission is convenient, uses flexibly, can be widely used on the cylinder or fluid cylinder of various power transmission.
Description of drawings
Fig. 1 is a structural representation sketch of the present utility model.
Embodiment
Purport of the present utility model is to utilize the switching signal feedback means be installed on the cylinder cap, and the direct bearing feedback information is carried out in cylinder bar position, reaches the motion conditions of accurate grasp cylinder body and attached drive mechanism thereof, understands better and controls its working state.
Be example below with the cylinder, 1 pair of the utility model is further described in conjunction with the accompanying drawings:
A kind of cylinder that has the switching signal feedback means comprises cylinder body 8, cylinder bar 4 and pair of switches signal feedback device, and the pair of switches signal feedback device is connected on the front cover 2 and rear end cover of cylinder body 8.Because pair of switches signal feedback device structure is identical, this sentences the switching signal feedback means that is positioned on the front cover 2 is that example is described in detail.
The switching signal feedback means that is positioned on the front cover 2 comprises position limit switch, stroke trigger and protective housing 1.Position limit switch is a magnetic induction position limit switch 7, magnetic induction position limit switch 7 is fixed on front cover 2 outsides, between the piston 3 of stroke trigger in magnetic induction position limit switch 7 and cylinder body 8, promote the stroke trigger by piston 3 motions and touch magnetic induction position limit switch 7, magnetic induction position limit switch 7 outgoing position feedback signals, the position signal of output makes the operator can in time understand the operation present situation of cylinder body 8 and each drive part, guarantees that transmission process efficiently, accurately, carry out in order.
For the stroke trigger can be contacted with the piston 3 in the cylinder body 8, the stroke trigger comprises cylindrical push rod 10, push rod Sealing and Returnning spring 13.The push rod Sealing comprises seal ring 11 and catch 15.The front cover 2 of cylinder body 8 is provided with through hole 12, after push rod 10 passes through hole 12, seal ring 11 by catch 15 from through hole 12 inner seals between push rod 10 and through hole 12, seal ring 11 can prevent the movement clearance generation gas leak phenomenon between push rod 10 and the through hole 12, improves the axial tightness of push rod 10.Push rod 10 outer ends are fixed with the magnet ring 5 of annular, and push rod 10 the inners are provided with a boss that play fixed supporting role 14, and Returnning spring 13 is located on the push rod 10, and Returnning spring 13 outer ends contact with boss 14 inboards, and Returnning spring 13 the inners contact with catch 15.In piston 3 movement processes, push rod 10 the inners contact with piston 3, the magnetic induction position limit switch 7 that outer end magnet ring 5 triggers on the front covers 2, and after magnetic induction position limit switch 7 sent signal, the movable information of cylinder bar 4 was fed back to the operator place.
Protective housing 1 covers on magnetic induction position limit switch 7 and the stroke trigger, and fixedlys connected with front cover 2 edges, and protective housing 1 is provided with external cooling air intake 6 and power supply and signal cable interface 9.External cooling air intake 6 can be communicated with cooling fan, also can insert the normal temperature airduct, the electronic component under hot environment in the cooling protective housing.9 power supplys and signal cable interfaces provide outer easily access port for ABAP Adapter and cable, are beneficial to connect and use.Protective housing 1 has avoided magnetic induction position limit switch 7 to be subjected to condition influence such as ambient temperature, magnetic field, dust, water spatter, and other object may be to the damage of magnetic induction position limit switch 7 and stroke trigger.
Certainly, in said structure, for simplified structure, reduce cost, catch 15 and front cover 2 also can be structure as a whole; Simultaneously, the magnetic induction position limit switch of selecting for use 7 also can be mechanical stroke switch or infrared rays position limit switch, only the principle of mechanical stroke switch is to touch elastic switch by push rod 10 to start, and the principle of infrared rays position limit switch is to start feedback signal after blocking infrared signal by push rod 10.Equally, the Returnning spring 13 that plays push rod 10 reset functions also can utilize the stretching principle of spring, is connected between push rod 10 outer ends and the end cap with extended state, with contractile force push rod 10 is resetted.
In the real work, piston 3 moves reciprocatingly in cylinder body 8, because the switching signal feedback means is directly installed on the front cover 2 and rear end cover of cylinder body 8, when piston 3 moves to front end, piston 3 can touch the push rod 10 that is positioned on the front cover 2, push rod 10 is protruding, the Returnning spring 13 that is positioned on the push rod 10 is out of shape in the effect lower compression of boss 14 and catch 15, when the magnet ring 5 of push rod 10 front ends moves on the magnetic induction position limit switch 7 on the front cover 2, magnetic induction position limit switch 7 collects cutting information, send feedback signal, prove that cylinder bar 4 has reached cylinder body 8 foremost.When piston 3 was return, push rod 10 shrank under the effect of Returnning spring 13 restoring forces to the inside, and magnet ring 5 leaves the magnetic induction position limit switch 7 on the front cover 2.When piston 3 returns to lowermost end, piston 3 can touch an other cover switching signal feedback means that is positioned on the rear end cover equally again, reciprocal like this carrying out, feedback signal constantly produces, and the information gathering of this moment only needs can to obtain at any time by power supply and signal cable interface 9, uses simple, convenient.
Claims (8)
1. a cylinder or fluid cylinder that has the switching signal feedback means, comprise cylinder body and cylinder bar, it is characterized in that also comprise the pair of switches signal feedback device that cylinder bar position is surveyed, described pair of switches signal feedback device is installed in respectively on the front cover and rear end cover of cylinder body.
2. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 1 is characterized in that described switching signal feedback means comprises position limit switch and stroke trigger, and described position limit switch is fixed on the end cap outside; Described stroke trigger passes the through hole on the end cap, is installed between the piston in position limit switch and the cylinder body.
3. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 2, it is characterized in that, described stroke trigger comprises push rod, push rod Sealing and Returnning spring, described push rod Sealing comprises seal ring and catch, after push rod passed through hole on the end cap, seal ring was sealed in the inboard of end cap through hole by catch; Described Returnning spring is connected on the push rod and push rod is resetted.
4. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 3 is characterized in that described push rod the inner is provided with boss, and Returnning spring is compressed between boss and the catch.
5. according to claim 3 or 4 described cylinder or the fluid cylinders that have the switching signal feedback means, it is characterized in that described catch and end cap are structure as a whole.
6. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 3 is characterized in that described Returnning spring is connected between push rod outer end and the end cap with extended state.
7. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 2 is characterized in that described position limit switch comprises mechanical stroke switch, magnetic induction position limit switch or infrared rays position limit switch.
8. cylinder or the fluid cylinder that has the switching signal feedback means according to claim 2, it is characterized in that, also comprise protective housing, described protective housing covers on position limit switch and the stroke trigger, and protective housing is provided with external cooling air intake and power supply and signal cable interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202354968U CN201696390U (en) | 2010-06-24 | 2010-06-24 | Air cylinder or hydraulic cylinder with switching signal feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202354968U CN201696390U (en) | 2010-06-24 | 2010-06-24 | Air cylinder or hydraulic cylinder with switching signal feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696390U true CN201696390U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202354968U Expired - Fee Related CN201696390U (en) | 2010-06-24 | 2010-06-24 | Air cylinder or hydraulic cylinder with switching signal feedback device |
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| Country | Link |
|---|---|
| CN (1) | CN201696390U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498834A (en) * | 2013-10-23 | 2014-01-08 | 应俊波 | Device and method for feeding back position of straight-stroke pneumatic actuator |
| CN103781591A (en) * | 2011-09-02 | 2014-05-07 | Smc株式会社 | Clamping device |
| CN105090606A (en) * | 2014-05-21 | 2015-11-25 | 航天长征化学工程股份有限公司 | Feedback device for air cylinder |
| CN109530652A (en) * | 2018-11-08 | 2019-03-29 | 贵州华昌汽车电器有限公司 | A kind of plug-in type stainless steel sensor oil cylinder of die casting |
-
2010
- 2010-06-24 CN CN2010202354968U patent/CN201696390U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781591A (en) * | 2011-09-02 | 2014-05-07 | Smc株式会社 | Clamping device |
| CN103498834A (en) * | 2013-10-23 | 2014-01-08 | 应俊波 | Device and method for feeding back position of straight-stroke pneumatic actuator |
| CN103498834B (en) * | 2013-10-23 | 2016-08-17 | 应俊波 | Straight travel pneumatic actuating mechanism position feedback device and method |
| CN105090606A (en) * | 2014-05-21 | 2015-11-25 | 航天长征化学工程股份有限公司 | Feedback device for air cylinder |
| CN109530652A (en) * | 2018-11-08 | 2019-03-29 | 贵州华昌汽车电器有限公司 | A kind of plug-in type stainless steel sensor oil cylinder of die casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |