CN106499692A - Two-way freely concatenate connecting rod cylinder - Google Patents
Two-way freely concatenate connecting rod cylinder Download PDFInfo
- Publication number
- CN106499692A CN106499692A CN201610846796.1A CN201610846796A CN106499692A CN 106499692 A CN106499692 A CN 106499692A CN 201610846796 A CN201610846796 A CN 201610846796A CN 106499692 A CN106499692 A CN 106499692A
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- China
- Prior art keywords
- cylinder
- air flue
- positioning
- central housing
- piston bar
- Prior art date
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- 239000003570 air Substances 0.000 claims abstract description 113
- 239000007789 gases Substances 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 27
- 238000010030 laminating Methods 0.000 claims 1
- 238000006243 chemical reactions Methods 0.000 abstract description 2
- 210000001847 Jaw Anatomy 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixtures Substances 0.000 description 3
- 238000010521 absorption reactions Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrates Substances 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 239000003921 oils Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011257 shell materials Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Abstract
Description
Technical field
The present invention relates to a kind of frock clamp, freely concatenates connecting rod cylinder more particularly, to one kind is two-way.
Background technology
With the continuous development of machinery manufacturing industry, processing method is also updated therewith with equipment, the compression mode of clamp for machining Progressively substituted by air pressure and oil pressure by original manual compression.Air is reproducible, cleaning, does not pollute the environment, in folder In the case that clamp force is less demanding, pneumatic clamping is more more convenient than hydraulic clamp more economical.Meanwhile, there is air in each processing enterprise Compressor, concentrates and provides compressed air, for hydraulic clamp, it is not necessary to which every lathe is all equipped with Hydraulic Station, Neng Goujie About investment, save place and reduce energy resource consumption, so air-actuated jaw apply in machining more and more extensive.Either high The Digit Control Machine Tool of precision, machining center or machine tool, air-actuated jaw can give play to huge effect, stably can produce Quality, improve production efficiency, the labour intensity that saves production cost, reduce operator.Air-actuated jaw through frequently with mode It is directly to be cylinder for second using cylinder and mechanical linkage coordinates and collectively constitutes air-actuated jaw to have two kinds of one kind.Elongated processing Find in lath-shaped workpiece, existing cylinder exists in clamping process and takes up room big, and fixture takes up room Work workpiece space reduce, can clamping workpiece quantity reduce, so as to reduce working (machining) efficiency, and the difference cylinder species due to workpiece Excessively, need to buy multiple stroke cylinders respectively for different strokes when using, replaceability is not strong, and cylinder is in workpiece Between the problems such as be sized inconvenience.
Content of the invention
The present invention is primarily directed to the problems referred to above, there is provided one kind can convert according to actual needs stroke, two-way can be real Now stretch, as needed conversion the two-way of telescopic direction freely concatenate connecting rod cylinder.
The purpose of the present invention is mainly achieved by following proposal：One kind is two-way freely to concatenate connecting rod cylinder, bag Cylinder body is included, and described cylinder body includes left cylinder and right cylinder body, and left piston bar, the axis of right cylinder body is provided with the axis of left cylinder Place is provided with right piston bar, is provided through left air flue in the middle part of left cylinder, is provided through right air flue in the middle part of right cylinder body, left The side wall of cylinder body is provided with the left gas port and middle gas port being connected with left air flue, is provided with and right air flue phase on the side wall of right cylinder body The right gas port of connection, is provided with central housing, is provided with and left air flue in the middle part of central housing between left cylinder and right cylinder body The connection air flue connected with right air flue.Cylinder body includes left cylinder and right cylinder body, arranges left piston bar, right cylinder at the axis of left cylinder Right piston bar is set at the axis of body, left piston bar is respectively facing two different directions with right piston bar, when left piston bar is stretched Pressure can be applied to the workpiece in left side when long, pressure can be applied to the workpiece on right side when right piston bar extends.When left work Stopper rod and right piston bar now can arrange multiple cylinder bodies while right while apply pressure to the workpiece of both sides when all extending Multiple workpiece are combined clamping.Central housing is set between left cylinder and right cylinder body, and the thickness increase using central housing is left The distance between cylinder body and right cylinder body, and then increase the length of whole cylinder body, that is, increase the stroke of whole cylinder body, according to reality Stroke needs, and can arrange the central housing of different numbers between left cylinder and right cylinder body.Left piston bar is located at left cylinder In left air flue, right piston bar be located at right cylinder body right air flue in, when central housing connection air flue close when, air compressor to When being filled with gases at high pressure in left gas port, gases at high pressure enter left air flue and outwards extrude left piston bar, realize left piston bar Elongation；When air compressor is filled with gases at high pressure in gas port to the right, gases at high pressure enter right air flue and by right piston bar to external pressure Go out, realize the elongation of right piston bar.When the connection airway open of central housing, left air flue, right air flue and connection air flue phase Intercommunicated, left piston bar and right piston bar are extruded by gases at high pressure simultaneously, realize pressing while left piston bar and right piston bar, Multiple cylinder body combined serials can be adopted now, while to the common clamping of multiple workpiece.
Preferably, being hinged with briquetting on described left piston bar and right piston bar, briquetting is L-shaped, in briquetting Portion is provided with chute, slidably connects locating rod on left cylinder and right cylinder body, and the free end of locating rod is hinged with chute.Left work Briquetting is hinged with stopper rod and right piston bar, briquetting is L-shaped, when left piston bar and right piston bar extend, promotes briquetting Press to the one end away from cylinder body.Chute is provided with the middle part of briquetting, and when briquetting feeds, locating rod can be played a supporting role Follow left piston bar or right piston bar feed and briquetting is slidably supported in chute.
Preferably, being provided with positioning pipe at described connection air flue axis, positioning pipe is by several support arms and company The inwall of airway is fixedly linked, and in sector, several support arms are uniformly distributed the section of support arm around the axis of positioning pipe, The outer surface of support arm is connected with connection air flue inner thread.Positioning pipe is provided with connection air flue axis, and positioning pipe is by propping up Brace is fixedly linked with the inwall for connecting air flue, and the section of support arm is in sector, and several support arms are around positioning pipe Axis is uniformly distributed, and the part between two neighboring support arm ensure that the unimpeded of whole connection air flue, while ensureing positioning Pipe uniform force, makes positioning pipe all the time with to connect air flue coaxial.The outer surface of support arm is connected with connection air flue inner thread, i.e., Support arm and positioning pipe can be individually produced, and coordinated by screw thread and assembled.After installation positioning pipe in air flue is connected, can Multiple central housings are linked together using positioning pipe.
Preferably, being provided through connecting shaft inside positioning pipe, two neighboring central housing is connected by connecting shaft.Fixed Connecting shaft is provided through inside the pipe of position, two neighboring central housing is connected by connecting shaft, is easy to the assembling of central housing.
Preferably, be provided with governor motion between two neighboring central housing, governor motion include the first positioning strip, Two positioning strips and flexible sealing ring, one end of flexible sealing ring is fixed on the first positioning strip, the other end is fixed on the second positioning On bar, several folding lines are provided with flexible sealing ring, locating notch is provided with, even on the end face of two central housing laminatings Locating slot is provided with the middle part of spindle, and one end of the first positioning strip is at the locating notch of a central housing, other end position In locating slot, one end of the second positioning strip is located at the locating notch of another central housing, the other end is located in locating slot； The size of flexible sealing ring is matched to the position between air flue inner surface is connected with connecting shaft outer surface.Two neighboring middle cylinder Governor motion is provided between body, and the opening and closing that can adjust connection air flue by governor motion, when governor motion is opened When, connection air flue is got through, and left piston bar and right piston bar stretch out simultaneously；When governor motion cuts out, connection air flue is closed, respectively Gases at high pressure are filled with air flue and right air flue to the left, stretching out for left piston bar or right piston bar can be individually controlled.Governor motion Including the first positioning strip, the second positioning strip and flexible sealing ring, one end of flexible sealing ring is fixed on the first positioning strip, another End is fixed on the second positioning strip, and is provided with several folding lines on flexible sealing ring, when the second positioning strip and the first positioning When bar position is staggered, flexible sealing ring is gradually spread out with the second positioning strip, when the second positioning strip rounds and fixed with first When position bar is overlapped once again, flexible sealing ring is fully deployed into fan annular.When two neighboring central housing is fitted, the first positioning strip One end be located at a central housing locating notch at, locating notch can be spacing to the first positioning strip, the second positioning strip One end is located at the locating notch of another central housing, and locating notch can be spacing to the second positioning strip.Rotate in another Between cylinder body when, this central housing drives the rotation of second positioning strip, and the second positioning strip lower end is enclosed in the locating slot in connecting shaft Slide rotation around the outer surface of locating slot, when central housing is rotated by 360 °, flexible sealing ring is fully opened, and by connecting shaft Fully seal with the annular position between air flue is connected, it is achieved that the closing of connection air flue.In the same manner, central housing is reversely rotated, Second positioning strip is rotated back towards the first positioning strip direction, and flexible sealing ring is folded by folding line, realizes connection air flue Open.
Preferably, described left cylinder away from left piston bar one end and right cylinder body be all provided with away from one end of right piston bar Magnetic plate is equipped with, the shape of magnetic plate is identical with the section configuration of left cylinder and right cylinder body.Left cylinder away from left piston bar one End and right cylinder body are provided with magnetic plate away from one end of right piston bar, using magnetic plate can realize left cylinder and right cylinder body with The absorption connection of central housing, it is ensured that the Rapid Combination of central housing.
Preferably, central housing is provided with positioning convex ring, positioning convex ring and left air flue edge near one end of left cylinder It is engaged, the connection air flue edge of the other end of central housing is provided with and is engaged with the positioning convex ring of another central housing Positioning guide margin, right cylinder body is provided with away from one end of right piston bar and the positioning positioning convex ring that is engaged of guide margin.Central housing One end near left cylinder is provided with positioning convex ring, and positioning convex ring is engaged with the left air flue edge of left cylinder, using left air flue Edge is positioned to the positioning convex ring of central housing, realizes the quick positioning of central housing.The other end of central housing arranges positioning Guide margin, the positioning convex ring of another central housing are inserted into positioning in guide margin, and positioning guide margin can be spacing to positioning convex ring, real The quick positioning of existing two central housings.Right cylinder body arranges positioning convex ring away from one end of right piston bar, by determining on right cylinder body In the bulge loop insertion positioning guide margin of position, the quick positioning of right cylinder body is realized, is easy to the assembling of whole cylinder body.
Therefore, the two-way connecting rod cylinder that freely concatenates of the invention possesses following advantages：Arrange between left cylinder and right cylinder body Central housing, using thickness increase the distance between the left cylinder and right cylinder body of central housing, and then increases the length of whole cylinder body Degree, that is, increase the stroke of whole cylinder body, according to actual stroke needs, can arrange different between left cylinder and right cylinder body Several central housings.Left piston bar is located in the left air flue of left cylinder, and right piston bar is located in the right air flue of right cylinder body, works as centre When the connection air flue of cylinder body is closed, when air compressor is filled with gases at high pressure in gas port to the left, gases at high pressure enter left air flue simultaneously Left piston bar is outwards extruded, the elongation of left piston bar is realized；When air compressor is filled with gases at high pressure in gas port to the right, high pressure Gas enters right air flue and outwards extrudes right piston bar, realizes the elongation of right piston bar.When the connection air flue of central housing is beaten When opening, left air flue, right air flue and connection air flue are interconnected, and left piston bar and right piston bar are extruded by gases at high pressure simultaneously, Realize pressing while left piston bar and right piston bar, now can adopt multiple cylinder body combined serials, while to multiple workpiece Common clamping.
Description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present invention；
Accompanying drawing 2 is structural representation when two cylinder bodies are connected in the present invention；
Accompanying drawing 3 is side view when connecting airway open at central housing；
Accompanying drawing 4 is the side view at central housing during governor motion regulation；
Accompanying drawing 5 is side view when connection air flue is closed at central housing；
Accompanying drawing 6 is sectional view when connecting airway open at central housing；
Accompanying drawing 7 is sectional view when connection air flue is closed at central housing；
Accompanying drawing 8 is partial enlarged drawing at A in accompanying drawing 7.
Illustrate：1- left cylinders, 2- right cylinder bodies, 3- left piston bars, 4- right piston bars, 5- central housings, the left gas ports of 6-, The right gas ports of 7-, gas port in 8-, 9- briquettings, 10- locating rods, 11- chutes, 12- workpiece, 13- connect air flue, 14- positioning pipes, 15- Support arm, 16- connecting shafts, the first positioning strips of 17-, the second positioning strips of 18-, 19- flexible sealing rings, 20- locating notches, 21- are fixed Position groove, 22- folding lines.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment 1：As shown in Figure 1, 2, 3, one kind is two-way freely concatenates connecting rod cylinder, and including cylinder body, cylinder body includes left cylinder Body 1 and right cylinder body 2, are provided with left piston bar 3, are provided with right piston bar 4, left cylinder at the axis of right cylinder body at the axis of left cylinder Left air flue is provided through in the middle part of body, right air flue is provided through in the middle part of right cylinder body, and the side wall of left cylinder is provided with and a left side Left gas port 6 and middle gas port 8 that air flue is connected, are provided with the right gas port 7 being connected with right air flue, left cylinder on the side wall of right cylinder body Central housing 5 is provided between body and right cylinder body, is provided with the company connected with left air flue and right air flue in the middle part of central housing Airway 13.Briquetting 9 is hinged with left piston bar and right piston bar, briquetting is L-shaped, in the middle part of briquetting, is provided with chute 11, locating rod 10 is slidably connected on left cylinder and right cylinder body, the free end of locating rod is hinged with chute.Connection air flue axis Place is provided with positioning pipe 14, and positioning pipe is fixedly linked with the inwall for connecting air flue by several support arms 15, support arm disconnected In sector, several support arms are uniformly distributed around the axis of positioning pipe in face, the outer surface of support arm with connect air flue inwall spiral shell Line connects.Connecting shaft 16 is provided through inside positioning pipe, and two neighboring central housing is connected by connecting shaft.As Fig. 4,5,6, 7th, shown in 8, governor motion is provided between two neighboring central housing, governor motion includes that the first positioning strip 17, second is positioned Bar 18 and flexible sealing ring 19, one end of flexible sealing ring is fixed on the first positioning strip, the other end is fixed on the second positioning strip On, several folding lines 22 are provided with flexible sealing ring, are provided with locating notch 20 on the end face of two central housing laminatings, It is provided with locating slot 21 in the middle part of connecting shaft, one end of the first positioning strip is located at the locating notch of a central housing, another End is located in locating slot, and one end of the second positioning strip is located at the locating notch of another central housing, the other end is located at positioning In groove；The size of flexible sealing ring is matched to the position between air flue inner surface is connected with connecting shaft outer surface.Left cylinder is remote Magnetic plate, the shape of magnetic plate and left cylinder is provided with from one end of left piston bar and right cylinder body away from one end of right piston bar Identical with the section configuration of right cylinder body.Central housing is provided with positioning convex ring, positioning convex ring and left gas near one end of left cylinder Road edge is engaged, and the connection air flue edge of the other end of central housing is provided with the positioning convex ring with another central housing The positioning guide margin being engaged, right cylinder body are provided with the positioning convex ring being engaged with positioning guide margin away from one end of right piston bar.
Cylinder body includes left cylinder and right cylinder body, arranges left piston bar at the axis of left cylinder, arranges at the axis of right cylinder body Right piston bar, left piston bar and right piston bar are respectively facing two different directions, can be to left side when left piston bar extends Workpiece apply pressure, can be to the workpiece on right side applying pressure when right piston bar extend.When left piston bar and right piston bar When all extending can and meanwhile to both sides workpiece apply pressure, now can arrange multiple cylinder bodies while carrying out to multiple workpiece 12 Combination clamping.Central housing is set between left cylinder and right cylinder body, using the thickness increase left cylinder and right cylinder body of central housing The distance between, and then the length of the whole cylinder body of increase, that is, increase the stroke of whole cylinder body, according to actual stroke needs, energy Enough central housings that different numbers are set between left cylinder and right cylinder body.Left piston bar is located in the left air flue of left cylinder, right Piston rod is located in the right air flue of right cylinder body, and when the connection air flue of central housing is closed, air compressor is filled in gas port to the left When entering gases at high pressure, gases at high pressure enter left air flue and outwards extrude left piston bar, realize the elongation of left piston bar；Air pressure When contracting machine is filled with gases at high pressure in gas port to the right, gases at high pressure enter right air flue and simultaneously outwards extrude right piston bar, realize right work The elongation of stopper rod.When the connection airway open of central housing, left air flue, right air flue and connection air flue are interconnected, high pressure Left piston bar and right piston bar are extruded by gas simultaneously, are realized pressing while left piston bar and right piston bar, can now be adopted With multiple cylinder body combined serials, while to the common clamping of multiple workpiece.Briquetting is hinged with left piston bar and right piston bar, is pressed Block is L-shaped, when left piston bar and right piston bar extend, promotes briquetting to press to the one end away from cylinder body.The middle part of briquetting Be provided with chute, when briquetting feeds, locating rod can play a supporting role follow left piston bar or right piston bar feed and Sliding support briquetting in chute.Positioning pipe is provided with connection air flue axis, and positioning pipe passes through support arm and connects the interior of air flue Wall is fixedly linked, and the section of support arm is in sector, and several support arms are uniformly distributed around the axis of positioning pipe, and adjacent two Part between individual support arm ensure that the unimpeded of whole connection air flue, while ensureing positioning pipe uniform force, make positioning pipe All the time with to connect air flue coaxial.The outer surface of support arm is connected with connection air flue inner thread, i.e., support arm and positioning pipe can Individually produce, coordinated by screw thread and assembled.When connect air flue in install positioning pipe after, can will be multiple using positioning pipe in Between cylinder body link together.Connecting shaft is provided through inside positioning pipe, two neighboring central housing is connected by connecting shaft, just Assembling in central housing.Governor motion is provided between two neighboring central housing, connection can be adjusted by governor motion The opening and closing of air flue, when governor motion is opened, connection air flue is got through, and left piston bar and right piston bar stretch out simultaneously；When When governor motion cuts out, connection air flue is closed, and is filled with gases at high pressure to the left respectively, can individually control a left side in air flue and right air flue Piston rod or right piston bar stretch out.Governor motion includes the first positioning strip, the second positioning strip and flexible sealing ring, flexible sealing One end of ring is fixed on the first positioning strip, the other end is fixed on the second positioning strip, and if being provided with flexible sealing ring Dry folding line, when the second positioning strip and the first positioning strip position are staggered, flexible sealing ring is gradually spread out with the second positioning strip, When the second positioning strip rounds and is overlapped with the first positioning strip once again, flexible sealing ring is fully deployed into fan annular.Work as phase When adjacent two central housings are fitted, one end of the first positioning strip is located at the locating notch of a central housing, locating notch energy Enough spacing to the first positioning strip, one end of the second positioning strip is located at the locating notch of another central housing, locating notch energy Enough spacing to the second positioning strip.When rotating another central housing, this central housing drives the rotation of the second positioning strip, and second is fixed Outer surface in locating slot of the position bar lower end in connecting shaft around locating slot slides and rotates, when central housing is rotated by 360 °, Flexible sealing ring is fully opened, and connecting shaft is fully sealed with the annular position between air flue is connected, it is achieved that connection air flue Closing.In the same manner, central housing is reversely rotated, and the second positioning strip is rotated back towards the first positioning strip direction, and flexible sealing ring leads to Cross folding line to be folded, realize the opening of connection air flue.Left cylinder away from left piston bar one end and right cylinder body away from right piston One end of bar is provided with magnetic plate, can realize that left cylinder and right cylinder body are connected with the absorption of central housing using magnetic plate, Ensure the Rapid Combination of central housing.Central housing is provided with positioning convex ring, positioning convex ring and left cylinder near one end of left cylinder The left air flue edge of body is engaged, and the positioning convex ring of central housing is positioned using left air flue edge, realizes the fast of central housing Speed positioning.The other end of central housing arranges positioning guide margin, and the positioning convex ring of another central housing is inserted into positioning guide margin Interior, positioning guide margin can be spacing to positioning convex ring, realizes the quick positioning of two central housings.Right cylinder body is away from right piston bar One end arranges positioning convex ring, by the positioning convex ring insertion positioning guide margin on right cylinder body, realizes the quick positioning of right cylinder body, is easy to The assembling of whole cylinder body.
It should be understood that the embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that After having read the content of instruction of the present invention, those skilled in the art can be made various changes or modifications to the present invention, these etc. Valency form equally falls within the application appended claims limited range.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846796.1A CN106499692B (en) | 2016-09-23 | 2016-09-23 | It is two-way freely to concatenate connecting rod cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846796.1A CN106499692B (en) | 2016-09-23 | 2016-09-23 | It is two-way freely to concatenate connecting rod cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN106499692A true CN106499692A (en) | 2017-03-15 |
| CN106499692B CN106499692B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610846796.1A CN106499692B (en) | 2016-09-23 | 2016-09-23 | It is two-way freely to concatenate connecting rod cylinder |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214368A (en) * | 2004-02-02 | 2005-08-11 | Takenaka Komuten Co Ltd | Hydraulic circuit |
| CN201306328Y (en) * | 2008-12-09 | 2009-09-09 | 覃德伟 | Tandem type combined hydro-cylinder |
| CN201666285U (en) * | 2010-04-16 | 2010-12-08 | 奉化市鑫潮自动化元件有限公司 | Serially connected square cylinder |
| CN202209329U (en) * | 2011-08-17 | 2012-05-02 | 北京长宇利华液压系统工程设计有限公司 | Double-piston-rod relative motion oil cylinder |
| CN103148048A (en) * | 2013-03-26 | 2013-06-12 | 严瑞山 | Multistage-piston hydraulic tension oil cylinder |
| CN103410807A (en) * | 2013-09-02 | 2013-11-27 | 缪乾 | Stroke-adjustable multi-position air cylinder |
| CN204321663U (en) * | 2014-11-19 | 2015-05-13 | 高士华 | A kind of automobile exhaust pipe thread hole fixture |
| CN105499688A (en) * | 2015-11-26 | 2016-04-20 | 宁波福士汽车部件有限公司 | Cutting device for pipe fitting |
-
2016
- 2016-09-23 CN CN201610846796.1A patent/CN106499692B/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214368A (en) * | 2004-02-02 | 2005-08-11 | Takenaka Komuten Co Ltd | Hydraulic circuit |
| CN201306328Y (en) * | 2008-12-09 | 2009-09-09 | 覃德伟 | Tandem type combined hydro-cylinder |
| CN201666285U (en) * | 2010-04-16 | 2010-12-08 | 奉化市鑫潮自动化元件有限公司 | Serially connected square cylinder |
| CN202209329U (en) * | 2011-08-17 | 2012-05-02 | 北京长宇利华液压系统工程设计有限公司 | Double-piston-rod relative motion oil cylinder |
| CN103148048A (en) * | 2013-03-26 | 2013-06-12 | 严瑞山 | Multistage-piston hydraulic tension oil cylinder |
| CN103410807A (en) * | 2013-09-02 | 2013-11-27 | 缪乾 | Stroke-adjustable multi-position air cylinder |
| CN204321663U (en) * | 2014-11-19 | 2015-05-13 | 高士华 | A kind of automobile exhaust pipe thread hole fixture |
| CN105499688A (en) * | 2015-11-26 | 2016-04-20 | 宁波福士汽车部件有限公司 | Cutting device for pipe fitting |
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| Publication number | Publication date |
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| CN106499692B (en) | 2017-12-19 |
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