CN106499692B - It is two-way freely to concatenate connecting rod cylinder - Google Patents

It is two-way freely to concatenate connecting rod cylinder Download PDF

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Publication number
CN106499692B
CN106499692B CN201610846796.1A CN201610846796A CN106499692B CN 106499692 B CN106499692 B CN 106499692B CN 201610846796 A CN201610846796 A CN 201610846796A CN 106499692 B CN106499692 B CN 106499692B
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China
Prior art keywords
air flue
cylinder body
cylinder
central housing
piston bar
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Expired - Fee Related
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CN201610846796.1A
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Chinese (zh)
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CN106499692A (en
Inventor
戴朝卿
陈均朗
郑军
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Zhejiang A&F University ZAFU
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Zhejiang A&F University ZAFU
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

The present invention relates to a kind of frock clamp, and connecting rod cylinder is freely concatenated more particularly, to one kind is two-way.It is two-way freely to concatenate connecting rod cylinder, including cylinder body, described cylinder body includes left cylinder and right cylinder body, left piston bar is provided with the axis of left cylinder, right piston bar is provided with the axis of right cylinder body, left air flue is provided through in the middle part of left cylinder, right air flue is provided through in the middle part of right cylinder body, the side wall of left cylinder is provided with the left gas port being connected with left air flue and middle gas port, the right gas port being connected with right air flue is provided with the side wall of right cylinder body, central housing is provided between left cylinder and right cylinder body, the connection air flue that can be connected with left air flue and right air flue is provided with the middle part of central housing.It is of the invention to have and convert the beneficial effects such as stroke, two-way achievable flexible, as needed conversion telescopic direction according to being actually needed.

Description

It is two-way freely to concatenate connecting rod cylinder
Technical field
The present invention relates to a kind of frock clamp, and connecting rod cylinder is freely concatenated more particularly, to one kind is two-way.
Background technology
With the continuous development of machinery manufacturing industry, processing method also updates therewith with equipment, the compression mode of clamp for machining Progressively substituted by original compress by hand by air pressure and oil pressure.Air is reproducible, cleaning, does not pollute the environment, is pressing from both sides 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, concentrate and compressed air is provided, for hydraulic clamp, it is not necessary to which every lathe is all equipped with hydraulic station, Neng Goujie About invest, save place and reduce energy resource consumption, thus air-actuated jaw in machining using more and more extensive.It is either high Digit Control Machine Tool, machining center or the machine tool of precision, air-actuated jaw can give play to huge effect, can stablize and produce Quality, the labor intensity improve production efficiency, save production cost, reducing operator.Air-actuated jaw pass 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.It is elongated processing Found in lath-shaped workpiece, existing cylinder has that space-consuming is big, and fixture space-consuming means to add greatly in clamping process Work workpiece space reduce, can clamping workpiece quantity reduce, so as to reduce processing efficiency, and due to the difference cylinder species of workpiece Excessively, when in use for different strokes, it is necessary to buy a variety of stroke cylinders respectively, replaceability is not strong, and cylinder is in workpiece Between the problems such as being sized inconvenience.
The content of the invention
The present invention primarily directed to above mentioned problem, there is provided one kind can according to be actually needed conversion stroke, it is two-way can be real Now stretch, conversion the two-way of telescopic direction freely concatenates connecting rod cylinder as needed.
The purpose of the present invention is mainly what is be achieved by following proposal:One kind is two-way freely to concatenate connecting rod cylinder, bag Cylinder body is included, described cylinder body includes left cylinder and right cylinder body, left piston bar, the axis of right cylinder body are provided with the axis of left cylinder Place is provided with right piston bar, and left air flue is provided through in the middle part of left cylinder, and right air flue is provided through in the middle part of right cylinder body, left The side wall of cylinder body is provided with the left gas port being connected with left air flue and middle gas port, is provided with the side wall of right cylinder body and right air flue phase The right gas port of connection, central housing is provided between left cylinder and right cylinder body, being provided with the middle part of central housing can be with left air flue The connection air flue connected with right air flue.Cylinder body includes left cylinder and right cylinder body, and left piston bar, right cylinder are set at the axis of left cylinder Right piston bar is set at the axis of body, and left piston bar and right piston bar are respectively facing two different directions, when left piston bar is stretched It can apply pressure to the workpiece in left side when long, can apply pressure to the workpiece on right side when right piston bar extends.When left work Stopper rod and right piston bar can apply pressure to the workpiece of both sides simultaneously when all extending, and it is simultaneously right can now to arrange multiple cylinder bodies Multiple workpiece are combined clamping.Central housing is set between left cylinder and right cylinder body, increased using the thickness of central housing 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 is needed, and the central housing of different numbers can be set between left cylinder and right cylinder body.Left piston bar is located at left cylinder In left air flue, right piston bar is located in the right air flue of right cylinder body, 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;Air compressor is filled with to the right gases at high pressure in gas port when, 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, gases at high pressure simultaneously extrude left piston bar and right piston bar, are pressed while realizing left piston bar and right piston bar, Multiple cylinder body combined serials can be now used, 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, and locating rod is slidably connected on left cylinder and right cylinder body, and free end and the chute of locating rod are hinged.Left work Briquetting is hinged with stopper rod and right piston bar, briquetting is L-shaped, when left piston bar and the elongation of right piston bar, promotes briquetting Pressed to one end away from cylinder body.Chute is provided with the middle part of briquetting, when briquetting is fed, locating rod can play 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 passes through several support arms and company The inwall of airway is fixedly linked, and the section of support arm is uniformly distributed in sector, several support arms 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, positioning pipe passes through branch Brace is fixedly linked with connecting the inwall of 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 can ensure the unimpeded of whole connection air flue, while ensure to position 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, and coordinated by screw thread and assembled., can after installation positioning pipe in air flue is connected 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.It is 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 includes the first positioning strip, the 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 Several folding lines are provided with bar, on flexible sealing ring, are provided with locating notch on the end face of two central housing fittings, even Locating slot is provided with the middle part of spindle, one end of the first positioning strip is at the locating notch of a central housing, other end position In 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 matches with connecting shaft outer surface to the position connected between air flue inner surface.Two neighboring middle cylinder Governor motion is provided between body, the opening and closing of connection air flue can be adjusted 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 is closed, connection air flue is closed, respectively Gases at high pressure are filled with air flue and right air flue to the left, can individually control the stretching of left piston bar or right piston bar.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, is another End is fixed on the second positioning strip, and several folding lines are provided with flexible sealing ring, when the second positioning strip and first position When bar position is staggered, flexible sealing ring is gradually spread out with the second positioning strip, when the second positioning strip rounds and determines with first When position bar overlaps once again, flexible sealing ring is fully deployed into fan annular.When two neighboring central housing is bonded, the first positioning strip One end at the locating notch of central housing, 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 drive the second positioning strip rotation, the second positioning strip lower end is enclosed in the locating slot in connecting shaft Rotation is slided around the outer surface of locating slot, when central housing is rotated by 360 °, flexible sealing ring is opened completely, and by connecting shaft It is fully sealed with connecting the annular position between air flue, realizes the closing of connection air flue.Similarly, 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, the one end of one end and right cylinder body away from right piston bar of described left cylinder away from left piston bar is all provided with 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 the one end of right cylinder body away from right piston bar are provided with magnetic plate, using magnetic plate can realize left cylinder and right cylinder body with The absorption connection of central housing, ensure the Rapid Combination of central housing.
Preferably, central housing is provided with positioning convex ring, positioning convex ring and left air flue edge close to one end of left cylinder It is engaged, the connection air flue edge of the other end of central housing is provided with to be engaged with the positioning convex ring of another central housing Positioning guide margin, the one end of right cylinder body away from right piston bar is provided with and the positioning convex ring that is engaged of positioning guide margin.Central housing One end of left cylinder is provided with positioning convex ring, positioning convex ring is engaged with the left air flue edge of left cylinder, utilizes left air flue Edge positions to the positioning convex ring of central housing, realizes the fast positioning of central housing.The other end of central housing sets 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 fast positioning of existing two central housings.The one end of right cylinder body away from right piston bar sets positioning convex ring, by determining on right cylinder body In the bulge loop insertion positioning guide margin of position, the fast 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:Set between left cylinder and right cylinder body Central housing, increase the distance between left cylinder and right cylinder body using the thickness of central housing, and then increase the length of whole cylinder body Degree, that is, increase the stroke of whole cylinder body, according to the stroke needs of reality, different can be set 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, air compressor is filled with gases at high pressure to the left in gas port when, gases at high pressure enter left air flue simultaneously Left piston bar is outwards extruded, realizes the elongation of left piston bar;Air compressor is filled with to the right gases at high pressure in gas port when, 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 gases at high pressure simultaneously extrude left piston bar and right piston bar, Pressed while realizing left piston bar and right piston bar, can now use multiple cylinder body combined serials, while to multiple workpiece Common clamping.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Structural representation when accompanying drawing 2 is two cylinder body series connection in the present invention;
Accompanying drawing 3 is side view when airway open is connected at central housing;
Accompanying drawing 4 is the side view during governor motion regulation at central housing;
Accompanying drawing 5 is that side view when air flue is closed is connected at central housing;
Accompanying drawing 6 is sectional view when airway open is connected at central housing;
Accompanying drawing 7 is that sectional view when air flue is closed is connected 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- connection air flues, 14- positioning pipes, 15- Support arm, 16- connecting shafts, the positioning strips of 17- first, the positioning strips of 18- second, 19- flexible sealing rings, 20- locating notches, 21- are fixed Position groove, 22- folding lines.
Embodiment
Below by embodiment, and with reference to accompanying drawing, 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, including cylinder body, and cylinder body includes left cylinder Body 1 and right cylinder body 2, left piston bar 3 is provided with the axis of left cylinder, right piston bar 4, left cylinder are provided with the axis of right cylinder body 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, the side wall of left cylinder is provided with and a left side The left gas port 6 and middle gas port 8 that air flue is connected, the right gas port 7 being connected with right air flue, left cylinder are provided with the side wall of right cylinder body Central housing 5 is provided between body and right cylinder body, the company that can be connected with left air flue and right air flue is provided with the middle part of central housing Airway 13.Briquetting 9 is hinged with left piston bar and right piston bar, briquetting is L-shaped, and chute is provided with the middle part of briquetting 11, locating rod 10 is slidably connected on left cylinder and right cylinder body, and free end and the chute of locating rod are hinged.Connect air flue axis Place is provided with positioning pipe 14, and positioning pipe is fixedly linked by several support arms 15 with connecting the inwall of air flue, and support arm breaks Face is uniformly distributed in sector, several support arms around the axis of positioning pipe, and the outer surface of support arm is with connecting air flue inwall spiral shell Line connects.Connecting shaft 16 is provided through inside positioning pipe, 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 positions including the first positioning strip 17, second 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, locating notch 20 is provided with the end face of two central housing fittings, Locating slot 21 is provided with the middle part of connecting shaft, one end of the first positioning strip is located at the locating notch of a central housing, is another End is in the locating slot, and one end of the second positioning strip be located at the locating notch of another central housing, the other end is positioned at positioning In groove;The size of flexible sealing ring matches with connecting shaft outer surface to the position connected between air flue inner surface.Left cylinder is remote The one end of one end and right cylinder body away from right piston bar from left piston bar is provided with magnetic plate, the shape and left cylinder of magnetic plate It is identical with the section configuration of right cylinder body.Central housing is provided with positioning convex ring, positioning convex ring and left gas close to 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, the one end of right cylinder body away from right piston bar are provided with the positioning convex ring being engaged with positioning guide margin.
Cylinder body includes left cylinder and right cylinder body, and left piston bar is set at the axis of left cylinder, is set 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 application pressure when right piston bar extend.When left piston bar and right piston bar It can apply pressure to the workpiece of both sides simultaneously when all extending, can now arrange multiple cylinder bodies while multiple workpiece 12 are carried out Combine clamping.Central housing is set between left cylinder and right cylinder body, increases left cylinder and right cylinder body using the thickness of central housing The distance between, and then increase the length of whole cylinder body, that is, increase the stroke of whole cylinder body, according to the stroke needs of reality, 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 fills 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 Contracting machine is filled with to the right gases at high pressure in gas port when, gases at high pressure enter right air flue and 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 Gas simultaneously extrudes left piston bar and right piston bar, presses while realizing left piston bar and right piston bar, can now adopt 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 the elongation of right piston bar, promotes briquetting to be pressed to one end away from cylinder body.The middle part of briquetting Be provided with chute, when briquetting is fed, 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, positioning pipe is by support arm with connecting in 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 can ensure the unimpeded of whole connection air flue, while ensure 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 utilize positioning pipe will be multiple in Between cylinder body link together.Connecting shaft is provided through inside positioning pipe, two neighboring central housing is connected by connecting shaft, just In the assembling of 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 is closed, connection air flue is closed, and is filled with gases at high pressure in air flue and right air flue to the left respectively, can individually be controlled a left side The stretching of piston rod or right piston bar.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 A 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 once again with the first positioning strip, flexible sealing ring is fully deployed into fan annular.Work as phase During adjacent two central housings fitting, one end of the first positioning strip is 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 It is 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 Rotation is slided in position bar lower end in the locating slot in connecting shaft around the outer surface of locating slot, when central housing is rotated by 360 °, Flexible sealing ring is opened completely, and connecting shaft is fully sealed with connecting the annular position between air flue, realizes connection air flue Closing.Similarly, central housing is reversely rotated, the second positioning strip rotates 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 one end and right cylinder body away from left piston bar are away from right piston One end of bar is provided with magnetic plate, and the absorption that can realize left cylinder and right cylinder body and central housing using magnetic plate connects, Ensure the Rapid Combination of central housing.Central housing is provided with positioning convex ring, positioning convex ring and left cylinder close to 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 sets 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 fast positioning of two central housings.Right cylinder body is away from right piston bar One end sets positioning convex ring, by the positioning convex ring insertion positioning guide margin on right cylinder body, realizes the fast 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 the invention lectured, those skilled in the art can make various changes or modifications to the present invention, these etc. Valency form equally falls within the application appended claims limited range.

Claims (5)

1. one kind is two-way freely to concatenate connecting rod cylinder, including cylinder body, it is characterised in that described cylinder body includes left cylinder and right cylinder Body, left piston bar is provided with the axis of left cylinder, right piston bar is provided with the axis of right cylinder body, the middle part of left cylinder is run through Left air flue is provided with, right air flue is provided through in the middle part of right cylinder body, the side wall of left cylinder is provided with what is be connected with left air flue Left gas port and middle gas port, the right gas port being connected with right air flue are provided with the side wall of right cylinder body, between left cylinder and right cylinder body Central housing is provided with, the connection air flue that can be connected with left air flue and right air flue, described company are provided with the middle part of central housing Positioning pipe is provided with airway axis, positioning pipe is fixedly linked by several support arms with connecting the inwall of air flue, support The section of arm is uniformly distributed in sector, several support arms around the axis of positioning pipe, and the outer surface of support arm is with connecting air flue Inner thread connects.
2. two-way connecting rod cylinder is freely concatenated according to claim 1, it is characterised in that described left piston bar and right work Briquetting is hinged with stopper rod, briquetting is L-shaped, is provided with chute in the middle part of briquetting, the equal company of slip on left cylinder and right cylinder body Locating rod is connected to, free end and the chute of locating rod are hinged.
3. two-way connecting rod cylinder is freely concatenated according to claim 1, it is characterised in that is provided through inside positioning pipe Connecting shaft, two neighboring central housing are connected by connecting shaft.
4. two-way connecting rod cylinder is freely concatenated according to claim 3, it is characterised in that between two neighboring central housing Governor motion is provided with, governor motion includes the first positioning strip, the second positioning strip and flexible sealing ring, one end of flexible sealing ring Be fixed on the first positioning strip, the other end is fixed on the second positioning strip, be provided with several folding lines on flexible sealing ring, two Locating notch is provided with the end face of central housing fitting, is provided with locating slot in the middle part of connecting shaft, the one of the first positioning strip End is at the locating notch of a central housing, the other end is located in locating slot, and one end of the second positioning strip is located at another At the locating notch of central housing, the other end is located in locating slot;The size of flexible sealing ring and connecting shaft outer surface are to connecting Position between air flue inner surface matches.
5. two-way according to claim 1 or 2 or 3 or 4 freely concatenates connecting rod cylinder, it is characterised in that described left cylinder The one end of one end and right cylinder body away from right piston bar of body away from left piston bar is provided with magnetic plate, shape and the left side of magnetic plate Cylinder body is identical with the section configuration of right cylinder body.
CN201610846796.1A 2016-09-23 2016-09-23 It is two-way freely to concatenate connecting rod cylinder Expired - Fee Related CN106499692B (en)

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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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