WO2017158987A1 - 流体圧シリンダ - Google Patents
流体圧シリンダ Download PDFInfo
- Publication number
- WO2017158987A1 WO2017158987A1 PCT/JP2016/088855 JP2016088855W WO2017158987A1 WO 2017158987 A1 WO2017158987 A1 WO 2017158987A1 JP 2016088855 W JP2016088855 W JP 2016088855W WO 2017158987 A1 WO2017158987 A1 WO 2017158987A1
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- WIPO (PCT)
- Prior art keywords
- piston
- cylinder
- cylinder tube
- fluid pressure
- rod
- Prior art date
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- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
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- 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
- F15B15/1423—Component parts; Constructional details
-
- 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
-
- 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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
- F15B15/1419—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston of non-circular cross-section
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- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap sealings
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- 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
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
Definitions
- the present invention relates to a fluid pressure cylinder that displaces a piston along an axial direction under a pressure fluid supply action.
- a fluid pressure cylinder having a piston that is displaced under the action of supplying a pressure fluid has been used as means for conveying a workpiece or the like.
- a cylindrical cylinder tube, a cylinder cover provided at an end of the cylinder tube, and an inside of the cylinder tube are provided.
- the pressure receiving area is increased compared to the case of using a circular cross-sectional piston, and the output thrust is increased.
- Japanese Patent Publication No. 2011-508127 discloses a cylinder device having a piston with a square cross section.
- the cross-sectional shape of the cylinder housing is also formed in a quadrangular cross-section corresponding to the cross-sectional shape of the piston.
- a sealing member is provided at each outer edge of the piston via a groove, and sealing is performed by contacting the inner wall surface of the cylinder housing.
- a general object of the present invention is to provide a fluid pressure cylinder capable of reducing the longitudinal dimension while increasing the thrust, and at the same time improving the mountability.
- the present invention includes a cylindrical cylinder tube having a cylinder chamber therein, a pair of cover members attached to both ends of the cylinder tube, a piston provided to be displaceable along the cylinder chamber, and a coupling to the piston
- a hydraulic cylinder having a piston rod
- the piston and the cylinder tube have a rectangular cross section.
- the piston has a wear ring that is in sliding contact with the inner wall surface of the cylinder tube.
- the wear ring includes a magnet
- the cover member has a displacement direction of the piston.
- a bolt hole extending in at least two directions including a fastening bolt is selectively inserted into the bolt hole and fixed to another member.
- the piston and the cylinder tube are formed in a rectangular shape in the fluid pressure cylinder, and the wear ring and the magnet are formed by incorporating the magnet in the wear ring that constitutes the piston and is in sliding contact with the inner wall surface of the cylinder tube.
- the axial dimension along the displacement direction of the piston can be suppressed.
- FIG. 1 is an overall cross-sectional view of a fluid pressure cylinder according to an embodiment of the present invention.
- FIG. 2 is a front view of the fluid pressure cylinder of FIG. 1 as viewed from the rod cover side.
- FIG. 3 is an enlarged cross-sectional view showing the vicinity of the piston unit in the fluid pressure cylinder of FIG. 4 is an external perspective view of a piston rod and a piston unit in the fluid pressure cylinder of FIG.
- FIG. 5 is an exploded perspective view of the piston unit shown in FIG.
- FIG. 6 is a cross-sectional view taken along line VI-VI in FIG.
- FIG. 7 is a front view of the piston packing.
- FIG. 8 is an enlarged cross-sectional view showing the vicinity of the outer edge of the piston packing of FIG. FIG.
- FIG. 9 is an external perspective view of a fluid pressure cylinder in which a rod cover according to a modification is used.
- FIG. 10 is an external perspective view showing a state before assembly when the fluid pressure cylinder of FIG. 9 is fixed to another member arranged on the lower side.
- 11A is a cross-sectional view taken along line XIA-XIA in FIG. 9, and
- FIG. 11B is a cross-sectional view taken along line XIB-XIB in FIG.
- FIG. 12 is a perspective view showing a state before assembly in the case where the fluid pressure cylinder of FIG. 9 is fixed with a fixing bolt from the lower side of the other member.
- FIG. 13 is a cross-sectional view of a state in which the fluid pressure cylinder of FIG. 12 is fixed to another member.
- FIG. 14 is an external perspective view showing a state before assembly when the fluid pressure cylinder of FIG. 9 is fixed to another member arranged on the side.
- FIG. 15 is a cross-sectional view of a state in which the fluid pressure cylinder of FIG. 14 is fixed to another member.
- the fluid pressure cylinder includes a cylinder tube 12 having a rectangular cross section, a head cover (cover member) 14 attached to one end of the cylinder tube 12, and the other end of the cylinder tube 12.
- a rod cover (cover member) 16 attached to the cylinder tube 12, a piston unit (piston) 18 provided inside the cylinder tube 12 so as to be displaceable, and a piston rod 20 connected to the piston unit 18.
- the cylinder tube 12 is formed of, for example, a cylindrical body made of a metal material and extending with a constant cross-sectional area along the axial direction (arrows A and B directions), and a cylinder chamber in which the piston unit 18 is accommodated. 22 is formed.
- a sensor mounting rail 24 for mounting a detection sensor (not shown) is provided outside the cylinder tube 12.
- the sensor mounting rail 24 is formed in a substantially U-shaped cross section that opens in a direction away from the cylinder tube 12, and has a predetermined length along the axial direction (arrow A, B direction) of the cylinder tube 12. At the same time, it is mounted near the corner of the cylinder tube 12 having a rectangular cross section.
- the sensor mounting rail 24 is mounted and held with a detection sensor that detects the position of the piston unit 18 along the axial direction.
- the head cover 14 is formed of, for example, a metal material so as to have a substantially rectangular cross section.
- a communication hole 26 is formed at the center of the head cover 14 so as to face the cylinder tube 12 side (arrow A direction).
- a first damper 28 is mounted on the outer peripheral side of the communication hole 26 through a groove formed at the end of the head cover 14.
- the first damper 28 is formed, for example, in a ring shape from an elastic material, and is provided so that the end thereof protrudes slightly toward the cylinder tube 12 (in the direction of arrow A) with respect to the end of the head cover 14.
- a first fluid port 30 through which pressure fluid is supplied / discharged is formed on the side surface of the head cover 14, and the first fluid port 30 communicates with the communication hole 26, so After the pressure fluid is supplied to the one fluid port 30, the fluid is introduced into the communication hole 26.
- a first engagement groove 32 that is recessed toward the inside is formed on the side surface of the head cover 14 at an end portion that is on the cylinder tube 12 side (arrow A direction) with respect to the first fluid port 30. 12 is engaged with the first engagement groove 32 by crimping one end thereof inward.
- the head cover 14 is integrally connected to one end of the cylinder tube 12, and the seal member 34 a provided on the side surface of the head cover 14 contacts the inner surface of the cylinder tube 12. The leakage of pressure fluid through the cylinder tube 12 is prevented.
- the rod cover 16 is formed of, for example, a metal material having a substantially rectangular cross section, and a rod hole 36 penetrating along the axial direction (arrows A and B directions) is formed at the center. .
- a rod packing 38 and a bush 40 are provided on the inner peripheral surface of the rod hole 36 via an annular groove.
- mounting holes 42 are formed in the end face of the rod cover 16 in the vicinity of the four corners at predetermined depths along the axial direction.
- the side surface of the rod cover 16 is provided with a second fluid port 44 through which pressure fluid is supplied and discharged, as shown in FIG. It communicates with the cylinder chamber 22 through a communication passage 46 extending along the (B direction).
- the pressure fluid supplied from the second fluid port 44 is introduced into the cylinder chamber 22 from the communication path 46.
- a second engagement groove 48 that is recessed toward the inside is formed on the side surface of the rod cover 16 at an end that is on the cylinder tube 12 side (in the direction of arrow B) with respect to the second fluid port 44.
- the other end portion of the tube 12 is engaged with the second engagement groove 48 by being crimped inward.
- the rod cover 16 is integrally connected to the other end portion of the cylinder tube 12, and the seal member 34 b provided on the side surface of the rod cover 16 contacts the inner surface of the cylinder tube 12. Leakage of pressure fluid through the rod cover 16 and the cylinder tube 12 is prevented.
- cylinder tube 12 may be connected to the head cover 14 and the rod cover 16 by welding, for example, instead of being swaged.
- the piston unit 18 is provided at one end of the piston rod 20, and includes a base body (connecting body) 50 and a wear ring provided on the outer peripheral side of the base body 50. 52, a piston packing 54 adjacent to the wear ring 52, a plate body 56 adjacent to the piston packing 54, and adjacent to the plate body 56 closest to the other end side (in the direction of arrow A) of the piston rod 20. And a second damper 58 provided.
- the base body 50 is formed in, for example, a disk shape from a metal material, and a caulking hole 60 is formed at the center of which the one end of the piston rod 20 is inserted and caulked.
- the caulking hole 60 is formed in a tapered shape that gradually increases in diameter toward one end side (in the direction of arrow B) of the piston unit 18, and matches one end of the piston rod 20 with the shape of the caulking hole 60. As the diameter increases, the relative displacement in the axial direction (arrows A and B directions) is integrally coupled in a restricted state.
- the base body 50 has one end portion formed in a planar shape perpendicular to the axis, and the other end portion protruding toward the adjacent wear ring 52 (in the direction of arrow A).
- the first protrusion 62 and the second protrusion 64 that further protrudes from the first protrusion 62 are formed.
- the first and second protrusions 62 and 64 are formed in a circular cross section, and the second protrusion 64 is formed to have a smaller diameter than the first protrusion 62.
- a ring-shaped gasket (seal member) 66 is attached to the outer peripheral surface of the first protrusion 62 via an annular groove.
- the wear ring 52 is formed, for example, from a resin material so as to have a substantially rectangular cross section, and its outer shape is substantially the same as the cross sectional shape of the cylinder chamber 22.
- a mounting hole 68 for mounting the base body 50 is formed at the center thereof, and an end surface on one end portion side (arrow B direction) of the piston unit 18 is shown in FIGS.
- a pair of magnet holes 72 in which the magnets 70 are mounted are formed.
- the mounting hole 68 penetrates along the thickness direction of the wear ring 52 (directions of arrows A and B).
- the mounting hole 68 has a different diameter and is formed in a step shape in the axial direction (the directions of arrows A and B), and the first and second protrusions 62 and 64 of the base body 50 are engaged with each other.
- the base body 50 is held with respect to the center of 68.
- the one end surface of the base body 50 does not protrude with respect to the one end surface of the wear ring 52, and is formed so as to be in the same plane (see FIG. 3).
- the magnet hole 72 is formed, for example, at a pair of corners that are diagonal with the mounting hole 68 as the center, and is open to one end surface side of the wear ring 52 and is formed in a circular cross section and at a predetermined depth. .
- magnets 70 are inserted into the magnet holes 72 and fixed by, for example, an adhesive.
- the magnet 70 Since the magnet 70 is formed thinner than the thickness of the wear ring 52, the magnet 70 does not protrude from the end surface of the wear ring 52 while being accommodated in the magnet hole 72, and is built in the wear ring 52. .
- the sensor mounting rail 24 is provided in the vicinity of the corner of the cylinder tube 12 facing the magnet 70 in a state where the wear ring 52 in which the magnet 70 is built is housed in the cylinder tube 12. It is done.
- the piston packing 54 is formed in a rectangular cross section from an elastic material such as rubber, for example, and is formed in an annular shape in the vicinity of the outer edge on one end face and the other end face thereof.
- a lubricant retaining groove 76 is formed.
- the lubricant retaining groove 76 is formed on one end surface of the piston packing 54 on the wear ring 52 side (arrow B direction) and the other end surface of the piston packing 54 on the plate body 56 side (arrow A direction), respectively.
- the packing 54 is formed to be depressed by a predetermined depth in the thickness direction (arrows A and B directions), and a plurality (for example, three) are provided in parallel at a predetermined interval.
- a lubricant such as grease is held, and when the piston unit 18 moves in the axial direction (arrow A, B direction) along the cylinder tube 12, the cylinder tube 12 Lubrication between the piston unit 18 and the cylinder tube 12 is performed by supplying a lubricant to the inner wall surface.
- a packing hole 78 is opened at the center of the piston packing 54, and the piston packing 54 is inserted into a recess 80 formed on the other end surface of the wear ring 52 through the packing hole 78, thereby The other end surface of the packing 54 and the other end surface of the wear ring 52 are substantially flush with each other (see FIG. 3).
- the plate body 56 is made of, for example, a thin plate made of a metal material and having a substantially rectangular cross section, and an insertion hole 82 through which the second protrusion 64 of the base body 50 is inserted is opened at the center.
- the piston rod 20 is a main body formed of a shaft body having a predetermined length along the axial direction (the directions of arrows A and B) and having a substantially constant diameter.
- the piston unit 18 is held.
- the other end side of the piston rod 20 is inserted into the rod hole 36 of the rod cover 16, and is freely displaceable along the axial direction (directions of arrows A and B) by the bush 40 incorporated therein. Retained.
- the base body 50 is inserted into the mounting hole 68 from one end surface side of the wear ring 52, and the plate body 56 is brought into contact with the other end surface of the wear ring 52 to which the piston packing 54 is mounted.
- the piston rod 20 is inserted from the plate body 56 side to the caulking hole 60 of the base body 50, and the tip of the plate body 56 is in contact with the end of the main body 84.
- the piston unit 18 is held between the caulking portion 88 (tip portion 86) and the main body portion 84 of the piston rod 20.
- the caulking portion 88 and the main body portion 84 there are slight gaps in the axial direction (directions of arrows A and B) between the base body 50, the wear ring 52 and the plate body 56, respectively. Therefore, the wear ring 52, the piston packing 54, and the plate body 56 are held rotatably around the piston rod 20.
- the thickness dimension of the first protrusion 62 in the plate body 56 or the wear ring 52 is set to be large.
- the gap between the base body 50, the wear ring 52, and the plate body 56 is eliminated and the base body 50, the wear ring 52 and the plate body 56 are brought into close contact with each other.
- the relative rotation of the wear ring 52 and the plate body 56 with respect to the piston rod 20 is restricted, and the piston rod 20 and the piston unit 18 can be configured integrally. That is, it is suitable when it is not desired to rotate the piston rod 20 with respect to the piston unit 18.
- the fluid pressure cylinder 10 is basically configured as described above, and the operation and effects thereof will be described next.
- a state where the piston unit 18 shown in FIG. 1 is displaced toward the head cover 14 (in the direction of arrow B) will be described as an initial position.
- a pressure fluid is introduced into the first fluid port 30 from a pressure fluid supply source (not shown).
- the second fluid port 44 is opened to the atmosphere under a switching action by a switching valve (not shown).
- the pressure fluid is supplied from the first fluid port 30 to the communication hole 26, and the piston unit 18 is moved to the rod cover 16 side (arrow A direction) by the pressure fluid introduced from the communication hole 26 to the cylinder chamber 22. Is pressed.
- the piston rod 20 is displaced together under the displacement action of the piston unit 18, and the second damper 58 comes into contact with the rod cover 16 to reach the displacement end position.
- the fluid pressure cylinder 100 is formed with a pair of first bolt holes 106 through which the fixing bolts 104 are inserted on the upper surface of the rod cover 102 where the second fluid port 44 opens.
- a pair of second bolt holes 108 are formed on the side surface orthogonal to the upper surface.
- the first bolt holes 106 are provided so as to penetrate the rod cover 102 in the axial direction (arrow A, B direction) and the orthogonal direction (arrow C direction) and be separated from each other. . That is, the first bolt hole 106 is provided at a position closer to the end side (arrow A direction) of the rod cover 102 than the second fluid port 44, and in the height direction (arrow C direction) of the rod cover 102. Penetrates along.
- the first bolt hole 106 has a storage portion 110 in which the head portion 116 of the fixing bolt 104 is stored, and a lower diameter than the storage portion 110 (in the direction of arrow C1).
- the insertion portion 112 extends and a screw portion 114 formed at the lower end of the insertion portion 112 and engraved with a screw.
- the second bolt holes 108 are provided so as to be separated from each other in the height direction of the rod cover 102 (arrow C direction), and the first bolt holes 106 and the rod cover 102.
- the first side surface and the other side surface are penetrated, and a straight line having a substantially constant diameter is formed.
- the second bolt hole 108 is formed at a position closer to the end side (in the direction of arrow A) of the rod cover 102 than the first bolt hole 106.
- the fixing bolt 104 is inserted into the first bolt hole 106 from above, the head portion 116 is stored in the storage portion 110, and the fastening portion 118 provided with a screw on the outer peripheral surface is inserted into the insertion portion 112 and the screw portion.
- the rod cover 102 is fixed to the upper surface of the other member D1 by the fixing bolt 104 by being inserted into the screw 114 and screwed into the screw hole 120 of the other member D1.
- the fastening portion 118 of the fixing bolt 104 is formed with a smaller diameter than the insertion portion 112 and the screw portion 114.
- the fluid pressure cylinder 100 including the rod cover 102 is fixed in a state of being placed on the upper surface of the other member D1.
- the fluid pressure cylinder 100 is fixed to the other member D1 on the lower surface side.
- the other member D2 is used. 13 is shown by inserting the fastening portion 118a of the fixing bolt 104a from below the first bolt hole 106 through the hole 122 formed in the first screw hole 106 and screwing the fastening portion 118a to the screw portion 114.
- the other member D2 is fixed to the lower surface of the rod cover 102 by the fixing bolt 104a.
- the insertion portion 112 is formed with a smaller diameter than the fastening portion 118a in the fixing bolt 104a.
- the fluid pressure cylinder 100 is fixed to the side of the other member D3 as shown in FIG. 14 and FIG. With the other member D3 in contact with the side surface, the fixing bolt 104 is inserted from the other side surface side of the second bolt hole 108, and the fastening portion 118 protruding from one side surface of the second bolt hole 108 is connected to the other member D3.
- the screw hole 120 is screwed.
- the fluid pressure cylinder 100 can be attached to the side of the other member D3 via the fixing bolt 104.
- the fluid pressure cylinder 100 is fixed to the other member D3 on the side surface side.
- the piston unit 18 constituting the fluid pressure cylinder 10 is formed to have a rectangular cross section, and the cylinder tube 12 that houses the piston unit 18 is made to have a rectangular cross section.
- the thrust in the fluid pressure cylinder 10 can be increased, and the pressure fluid supplied into the cylinder chamber 22 can be driven even at a low pressure, thereby saving energy by reducing consumption of the pressure fluid. Can be achieved.
- the piston unit 18 has a wear ring 52 that is guided along the axial direction (arrows A and B directions) by slidingly contacting the inner wall surface of the cylinder tube 12, and a magnet 70 is built in the wear ring 52. Since the wear ring 52 and the magnet 70 can be configured in parallel with each other in the axial direction on the outer peripheral surface of the piston, the axial dimension of the piston unit 18 can be suppressed.
- the pressure cylinder 10 can be reduced in size.
- the fluid pressure cylinder 100 can be connected to the other members D1, D2, and D3.
- various fixings according to the use environment of the fluid pressure cylinder 100 and the like are possible.
- first and second bolt holes 106 and 108 described above are not limited to the case of being provided in the rod cover 102.
- the first and second bolt holes 106 and 108 may be provided in the head cover 14 and fixed by the fixing bolts 104 and 104a. .
- fluid pressure cylinder according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
Description
ピストン及びシリンダチューブが断面矩形状に形成され、ピストンには、シリンダチューブの内壁面に摺接するウェアリングを有し、ウェアリングにマグネットが内蔵されると共に、カバー部材には、ピストンの変位方向を含む少なくとも2方向以上に延在したボルト孔を有し、ボルト孔に対して締結ボルトが選択的に挿通され他部材に対して固定されることを特徴とする。
Claims (1)
- 内部にシリンダ室(22)を有した筒状のシリンダチューブ(12)と、前記シリンダチューブ(12)の両端部に装着される一組のカバー部材(14、16、102)と、前記シリンダ室(22)に沿って変位自在に設けられるピストン(18)と、前記ピストン(18)に連結されるピストンロッド(20)とを有する流体圧シリンダ(10、100)において、
前記ピストン(18)及び前記シリンダチューブ(12)が断面矩形状に形成され、前記ピストン(18)には、前記シリンダチューブ(12)の内壁面に摺接するウェアリング(52)を有し、前記ウェアリング(52)にマグネット(70)が内蔵されると共に、前記カバー部材(102)には、前記ピストン(18)の変位方向を含む少なくとも2方向以上に延在したボルト孔(42、106、108)を有し、前記ボルト孔(42、106、108)に対して締結ボルト(104、104a)が選択的に挿通され他部材に対して固定されることを特徴とする流体圧シリンダ。
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CN201680083595.9A CN108779787B (zh) | 2016-03-17 | 2016-12-27 | 流体缸 |
US16/084,038 US10927860B2 (en) | 2016-03-17 | 2016-12-27 | Fluidic cylinder |
DE112016006596.5T DE112016006596T5 (de) | 2016-03-17 | 2016-12-27 | Hydraulikzylinder |
KR1020187029661A KR102144860B1 (ko) | 2016-03-17 | 2016-12-27 | 유체압 실린더 |
RU2018136597A RU2703433C9 (ru) | 2016-03-17 | 2016-12-27 | Гидро(пневмо)цилиндр |
MX2018011284A MX2018011284A (es) | 2016-03-17 | 2016-12-27 | Cilindro para fluido. |
BR112018068783A BR112018068783A2 (pt) | 2016-03-17 | 2016-12-27 | cilindro fluídico |
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JP2016-053499 | 2016-03-17 | ||
JP2016053499A JP6548083B2 (ja) | 2016-03-17 | 2016-03-17 | 流体圧シリンダ |
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JP (1) | JP6548083B2 (ja) |
KR (1) | KR102144860B1 (ja) |
CN (1) | CN108779787B (ja) |
BR (1) | BR112018068783A2 (ja) |
DE (1) | DE112016006596T5 (ja) |
MX (1) | MX2018011284A (ja) |
RU (1) | RU2703433C9 (ja) |
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JP1629150S (ja) * | 2018-08-03 | 2019-04-15 | ||
USD888772S1 (en) * | 2018-08-03 | 2020-06-30 | Smc Corporation | Fluid pressure cylinder |
USD888773S1 (en) * | 2018-08-03 | 2020-06-30 | Smc Corporation | Fluid pressure cylinder |
JP1629153S (ja) * | 2018-08-30 | 2019-04-15 | ||
JP1629152S (ja) * | 2018-08-30 | 2019-04-15 | ||
JP1629154S (ja) * | 2018-08-30 | 2019-04-15 | ||
US11261886B1 (en) * | 2021-06-14 | 2022-03-01 | King Yuan Fu Packaging Co., Ltd. | Pneumatic cylinder and mechanical apparatus using the same |
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- 2016-12-27 RU RU2018136597A patent/RU2703433C9/ru active
- 2016-12-27 BR BR112018068783A patent/BR112018068783A2/pt active Search and Examination
- 2016-12-27 CN CN201680083595.9A patent/CN108779787B/zh active Active
- 2016-12-27 KR KR1020187029661A patent/KR102144860B1/ko active IP Right Grant
- 2016-12-27 US US16/084,038 patent/US10927860B2/en active Active
- 2016-12-27 MX MX2018011284A patent/MX2018011284A/es unknown
- 2016-12-27 DE DE112016006596.5T patent/DE112016006596T5/de not_active Withdrawn
- 2016-12-27 WO PCT/JP2016/088855 patent/WO2017158987A1/ja active Application Filing
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Also Published As
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KR20180123539A (ko) | 2018-11-16 |
MX2018011284A (es) | 2019-02-13 |
US10927860B2 (en) | 2021-02-23 |
RU2703433C1 (ru) | 2019-10-16 |
BR112018068783A2 (pt) | 2019-01-22 |
US20190195248A1 (en) | 2019-06-27 |
JP2017166618A (ja) | 2017-09-21 |
JP6548083B2 (ja) | 2019-07-24 |
CN108779787A (zh) | 2018-11-09 |
TWI658216B (zh) | 2019-05-01 |
RU2703433C9 (ru) | 2021-07-15 |
DE112016006596T5 (de) | 2018-12-13 |
TW201734322A (zh) | 2017-10-01 |
CN108779787B (zh) | 2021-02-26 |
KR102144860B1 (ko) | 2020-08-14 |
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