WO2020036060A1 - シリンダ装置 - Google Patents
シリンダ装置 Download PDFInfo
- Publication number
- WO2020036060A1 WO2020036060A1 PCT/JP2019/029894 JP2019029894W WO2020036060A1 WO 2020036060 A1 WO2020036060 A1 WO 2020036060A1 JP 2019029894 W JP2019029894 W JP 2019029894W WO 2020036060 A1 WO2020036060 A1 WO 2020036060A1
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- WIPO (PCT)
- Prior art keywords
- valve
- detection
- cylinder device
- piston
- valve body
- Prior art date
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Classifications
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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
- 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
- F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
- B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
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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
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/225—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke with valve stems operated by contact with the piston end face or with the cylinder wall
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
Definitions
- the present invention relates to a cylinder device provided with a detection valve for detecting an operating state of a piston.
- Patent Document 1 Conventionally, as this type of cylinder device, there is one described in Patent Document 1 below.
- the prior art is configured as follows.
- a detection valve for detecting the operating state of the booster mechanism provided in the cylinder device is provided in a housing constituting the cylinder device. Two detection valves are provided at the lower end of the housing, and an air supply path is provided for each detection valve, such as a first air supply path and a second air supply path.
- the above-mentioned conventional technology has the following problems.
- two (plural) air supply ports must be provided in the housing because an air supply path is provided for each detection valve in the housing. Further, in order to detect the operating state of the booster mechanism with two detection valves, it is necessary to provide a pressure switch in each air supply path.
- An object of the present invention is to provide a cylinder device having a configuration capable of reducing the number of air supply ports when a plurality of detection valves are provided in a housing to detect an operating state of a piston.
- a cylinder device is configured as follows.
- the cylinder device includes: a housing 1; pistons 5, 59, and 150 inserted into the housing 1, the pistons 5, 59, and 150 moving axially between a lock side and a release side; A plurality of detection valves 12, 13, 64, 65, 121, 122 provided in the plurality of detection valves 12, 13, 64, 65, 121 for detecting an operation state of the pistons 5, 59, 150; 122, and air passages 14, 15, 66, 125, 126 formed in the housing 1, and the plurality of detection valves 12, 13, 64, 65, 121, 122 are connected in series. 15, 66, 125, 126.
- Some of the plurality of detection valves 12, 13, 64, 65, 121, 122 are throttled detection valves 13, 65, 122 having throttle passages 56a, 106, 107a, 149.
- the cylinder device of the present invention has the following functions and effects. Since the plurality of detection valves are connected in series in the air passage, it is possible to share air supply to the plurality of detection valves. As a result, the number of air supply ports can be reduced. In addition, since a part of the plurality of detection valves is a detection valve with a throttle, each operating state of the piston can be distinguished by a difference in air pressure, and the number of pressure switches can be reduced.
- the cylinder device of the present invention further includes the following configuration.
- the throttled detection valve 13 is a valve element 49 that is inserted into a valve chamber 48 formed in the housing 1 so as to be able to advance and retreat, and is a valve that is energized by urging means 55 housed in the valve chamber 48.
- the valve body 49 includes a valve seat 54a facing the valve surface 53a of the valve body 49, and the throttle passage 56a is provided at the center of the end of the valve body 49 opposite to the rod portion 50. According to this configuration, it is easy to manufacture the detection valve with a throttle.
- the valve body 49 includes a valve body 52 having the rod portion 50 provided at an end thereof, and a center of an end of the valve body 52 opposite to the rod portion 50. It is preferable that a fixed throttle member 56 is provided, wherein the throttle member 56 has a hole 56a as the throttle passage.
- the pressure loss performance test of the throttle passage can be performed by the throttle member alone by using the throttle member as a separate member.
- the cylinder device of the present invention further includes the following configuration.
- the throttled detection valve 57 is a valve body 49 which is inserted into a valve chamber 48 formed in the housing 1 so as to be able to advance and retreat, and is energized by an urging means 55 accommodated in the valve chamber 48.
- the cylinder device of the present invention further includes the following configuration.
- the plurality of detection valves 64 and 65 are provided at the lower end of the housing 1. According to this configuration, the cylinder device can be made compact.
- the cylinder device of the present invention further includes the following configuration.
- a cylinder device having a configuration capable of reducing the number of air supply ports when a plurality of detection valves are provided in a housing to detect an operating state of a piston.
- FIG. 1 shows a first embodiment of the present invention, and is a cross-sectional view in a release state of a cylinder device as viewed from an elevation.
- FIG. 2 is a cross-sectional view of the cylinder device in an elevation view in a state where the cylinder device is being switched from a release state to a locked state.
- FIG. 3 is a cross-sectional view of the cylinder device in a locked state as viewed from an elevation.
- FIG. 4A is an enlarged view of a portion A in FIG. 1.
- FIG. 4B is an enlarged view of a portion C in FIG.
- FIG. 5A is an enlarged view of a portion B in FIG. 1.
- FIG. 5B is an enlarged view of a portion D in FIG. 3.
- FIG. 4A is an enlarged view of a portion A in FIG. 1.
- FIG. 4B is an enlarged view of a portion C in FIG.
- FIG. 5A is an enlarged view of a portion B in FIG. 1.
- FIG. 6A is a diagram corresponding to FIG. 5A and showing a modification of the second detection valve (detection valve with throttle).
- FIG. 6B is a diagram corresponding to FIG. 5B and showing a modification of the second detection valve (detection valve with throttle).
- FIG. 7 shows a second embodiment of the present invention, and is a cross-sectional view in a release state of a cylinder device as viewed from an elevation.
- FIG. 8 is an elevational sectional view of the cylinder device in a state where the cylinder device is being switched from the release state to the lock state.
- FIG. 9 is a cross-sectional view of the cylinder device in a locked state as viewed from an elevation.
- FIG. 10 is an enlarged view of a portion E in FIG. FIG.
- FIG. 11 is an enlarged view of a portion F in FIG.
- FIG. 12 is an enlarged view of a portion G in FIG.
- FIG. 13A is a view corresponding to FIG. 5A, showing a further modification of the modification of the second detection valve (detection valve with throttle) shown in FIGS. 6A and 6B.
- FIG. 13B is a view corresponding to FIG. 5B, showing a further modification of the modification of the second detection valve (detection valve with throttle) shown in FIGS. 6A and 6B.
- It is a figure corresponding to FIG. 1 which shows the detection valve with a throttle which concerns on the modification which provided the throttle passage outside.
- FIG. 1 shows the detection valve with a throttle which concerns on the modification which provided the throttle passage outside.
- FIG. 15 shows a third embodiment of the present invention, and is a cross-sectional view of a cylinder device in a released state as viewed from an elevation.
- FIG. 16 is a cross-sectional view of the cylinder device in an elevational view in a state where the cylinder device is being switched from the release state to the lock state.
- FIG. 17 is a cross-sectional view of the cylinder device in a locked state as viewed from an elevation.
- FIG. 18A is an enlarged view of a portion H in FIG. 15.
- FIG. 18B is an enlarged view of a portion J in FIG. 17.
- FIG. 19A is an enlarged view of a portion I in FIG.
- FIG. 19B is an enlarged view of a portion K in FIG. 17.
- FIGS. 1 to 5B show a first embodiment of the present invention. This embodiment illustrates a case where the cylinder device of the present invention is applied to a link clamp. The configuration of the cylinder device according to the first embodiment will be described with reference to FIGS. 1 to 5B.
- the housing 1 is mounted on a fixed base T such as a table.
- the housing 1 has a housing main body 2 and a lower end wall 3 fixed to a lower end of the housing main body 2.
- a cylinder hole 4 is formed inside the housing body 2.
- a piston 5 is inserted into the cylinder hole 4 in a hermetically movable manner in a vertical direction.
- the piston 5 has a piston body 6 and an output rod 7 extending from the piston body 6.
- the left end of the clamp arm 8 is rotatably connected to the upper end of the output rod 7.
- a pivot portion 2b projects upward from the upper right portion of the housing body 2, and a lower end portion of a link member 9 is rotatably connected to an upper end portion of the pivot portion 2b.
- the middle part in the longitudinal direction of 8 is rotatably connected.
- a lock chamber 10 is formed below the piston body 6, and a release chamber 11 is formed above the piston body 6.
- Pressure oil as a pressure fluid for locking is supplied to and discharged from the lock chamber 10, and pressure oil as pressure fluid for release is supplied and discharged to the release chamber 11.
- the illustration of the supply and discharge path of the pressure oil to and from the lock chamber 10 and the supply and discharge path of the pressure oil to the release chamber 11 is omitted.
- first detection valve 12 and a second detection valve 13 for detecting the operating state of the piston 5 are provided above the side wall of the housing body 2 and at the center of the lower end wall 3, respectively.
- An air passage 14 and an air passage 15 for connecting the first detection valve 12 and the second detection valve 13 in series are formed on the side wall and the lower end wall 3 of the housing main body 2, respectively.
- An air supply path 16 for supplying air (compressed air) as a detection fluid to each of the detection valves 12 and 13 in the order of the first detection valve 12 and the second detection valve 13 is formed on the side wall of the housing body 2.
- the air supply port 16a of the air supply path 16 communicates with an air supply path 17 formed in the fixed base T.
- an air discharge path 18 for discharging the air supplied from the air supply path 17 to each of the detection valves 12 and 13 is formed in the lower end wall 3.
- the air discharge port 18a of the air discharge path 18 communicates with an air discharge path 19 formed in the fixed base T.
- the first detection valve 12 is configured as follows, as shown in FIGS. 4A and 4B.
- a first mounting hole 21 is formed laterally above the side wall of the housing body 2.
- the first mounting hole 21 has a large-diameter hole 22, a medium-diameter hole 23, and a small-diameter hole 24 provided with a female screw portion 22 a in order from the outer peripheral surface side of the housing body 2.
- An annular pressing member 26 is fixed to a step 25 between the female screw portion 22a and the medium diameter hole 23 by a first valve case 27 screwed to the female screw portion 22a.
- a valve chamber 28 is formed inside the first valve case 27, and the air supply path 16 communicates with the valve chamber 28. Further, a first valve body 29 is inserted into the valve chamber 28.
- the rod portion 30 of the first valve body 29 is inserted into the medium diameter hole 23 via the sealing member 31 so as to be able to advance and retreat.
- An engagement ball 32 is inserted into the small-diameter hole 24 as an operation member for pushing the tip of the rod portion 30.
- a surface of the flange portion 34 provided on the valve body 33 of the first valve body 29 on the opposite side to the rod portion 30 is a valve surface 34a, and an annular shape as a valve seat member is provided inside the first valve case 27.
- the seal member 35 is fitted.
- the air passage 14 communicates with the valve chamber 28.
- a compression spring 36 as urging means mounted between the bottom surface of the first valve case 27 and the valve main body 33 moves the first valve body 29 in a direction in which the valve surface 34a is separated from the valve seat 35a of the seal member 35. Energize.
- the second detection valve 13 is configured as follows as shown in FIGS. 5A and 5B.
- a second mounting hole 41 is formed in the center of the lower end wall 3 of the housing 1 in the vertical direction.
- the second mounting hole 41 has a large-diameter hole 42, a medium-diameter hole 43, and a small-diameter hole 44 provided with a female screw portion 42 a in order from the lower surface side of the lower end wall 3.
- An annular pressing member 46 is fixed to a step 45 between the female screw portion 42a and the medium diameter hole 43 by a second valve case 47 screwed to the female screw portion 42a.
- a valve chamber 48 is formed inside the second valve case 47, and the air passage 15 communicates with the valve chamber 48.
- a second valve element 49 is inserted into the valve chamber 48.
- the rod portion 50 of the second valve body 49 is inserted into the medium-diameter hole 43 via the sealing member 51 so as to be able to advance and retreat.
- the tip of the rod portion 50 projects into the lock chamber 10.
- a surface of the flange 53 provided on the valve main body 52 of the second valve body 49 on the opposite side to the rod portion 50 is a valve surface 53a, and an annular ring as a valve seat member is provided inside the second valve case 47.
- the seal member 54 is fitted. Further, the air discharge passage 18 is communicated with the valve chamber 48.
- a compression spring 55 as urging means mounted between the bottom surface of the second valve case 47 and the valve body 52 pushes the second valve element 49 in a direction in which the valve surface 53a is separated from the valve seat 54a of the seal member 54. Energize.
- the second detection valve 13 is further configured as a detection valve with a throttle as follows.
- a throttle mounting hole 52a is formed at the center of the end of the valve body 52 opposite to the rod portion 50, and a throttle member 56 is fixed to the mounting hole 52a.
- a hole 56 a as a throttle passage is formed in the throttle member 56, and the hole 56 a communicates with a throttle communication passage 52 b formed in the valve body 52.
- the hole 56a opens in the valve chamber 48 on the air passage 15 side, and the communication passage 52b opens in the valve chamber 48 on the air discharge path 18 side.
- the compression spring 36 of the first detection valve 12 moves the engagement ball 32 to the output rod 7 via the rod 30 of the first valve body 29. Therefore, the valve surface 34a of the first valve body 29 is separated from the valve seat 35a of the seal member 35, and the first detection valve 12 is open.
- the first detection valve 12 is opened and the second detection valve 13 is closed.
- the pressure of the air supply path 17 is lower than 0.2 MPa, for example, 0.15 to 0.05 MPa.
- a pressure sensor (not shown) it is detected that the operating state of the piston 5 is the released state.
- the threshold at which the pressure sensor operates is, for example, 0.15 MPa.
- the first valve body 29 moves to the left smoothly. Further, the pressures of 0.15 MPa, 0 MPa, and 0.2 MPa exemplified above can be automatically detected by one pressure sensor capable of setting a plurality of thresholds.
- the operating state of the piston 5 is set by setting two thresholds (the first threshold is set to 0.15 MPa and the second threshold is set to 0.2 MPa) in one pressure sensor. Is configured to be detected. Instead of this, two pressure sensors may be provided in one flow path, and the operating state of the piston 5 may be detected by setting one threshold value for each pressure sensor.
- FIGS. 6A and 6B show a modified example of the second detection valve 13 with a throttle.
- the differences between the second detection valve 57 (detection valve with throttle) of the present modification and the second detection valve 13 are as follows.
- a hole 58 is formed as a throttle passage so as to penetrate the second valve body 49 in the up-down direction.
- the hole 58 forms a small flow path through which a small amount of air flows.
- One hole 58 may be formed in the second valve body 49, or a plurality of holes 58 may be formed.
- a groove 70 as a throttle passage may be formed in the valve surface 53a of the second valve body 49.
- one groove 70 may be formed on the valve surface 53a of the second valve body 49, or a plurality of grooves 70 may be formed.
- groove 70 instead of forming groove 70 on valve face 53a, groove 70 may be formed on valve seat 54a.
- the number of the grooves 70 formed in the valve seat 54a may be one or plural, as in the case where the grooves 70 are formed in the valve face 53a.
- FIGS. 7 to 12 show a second embodiment of the present invention.
- the piston 59 constituting the cylinder device of the second embodiment has a rod hole 59a inside, and the rod member 60 is inserted into the rod hole 59a.
- the piston 59 has a piston body 61 and an output rod 62 extending from the piston body 61.
- a compression spring 63 as urging means mounted between the top surface of the rod hole 59a and the flange 60a formed in the middle of the rod member 60 urges the rod member 60 downward.
- An annular member 86 as an operating member of the rod member 60 is fitted into the lower end of the rod hole 59a.
- first detection valve 64 and a second detection valve 65 for detecting the operating state of the piston 59 are provided on the lower end wall 3 (the lower end of the housing 1) constituting the housing 1.
- An air passage 66 that connects the first detection valve 64 and the second detection valve 65 in series is formed in the lower end wall 3.
- An air supply path 67 and an air supply path 68 for supplying air (compressed air) as a detection fluid to each of the detection valves 64 and 65 in the order of the first detection valve 64 and the second detection valve 65 are provided in the housing body 2. Are formed on the lower part of the side wall and the lower end wall 3.
- the air supply port 67a of the air supply path 67 communicates with the air supply path 17 formed in the fixed base T.
- an air discharge path 69 for discharging the air supplied from the air supply paths 67 and 68 to the respective detection valves 64 and 65 is formed in the lower end wall 3.
- the air discharge port 69a of the air discharge path 69 communicates with the air discharge path 19 formed in the fixed base T.
- the first detection valve 64 is configured as follows, as shown in FIGS.
- a first mounting hole 71 is formed in the lower end wall 3 in the vertical direction.
- the first mounting hole 71 has a large-diameter hole 72, a medium-diameter hole 73, and a small-diameter hole 74 provided with a female screw portion 72 a in order from the lower surface side of the lower end wall 3.
- the cylindrical holding member 76 is screwed into the first valve case 77.
- a cylindrical pressing member 76 is fixed to a step 75 between the female screw portion 72a and the medium diameter hole 73 by a first valve case 77 screwed to the female screw portion 72a.
- a valve chamber 78 is formed inside the first valve case 77 and the cylindrical holding member 76, and an air supply passage 68 communicates with the valve chamber 78.
- a first valve body 79 is inserted into the valve chamber 78.
- the rod portion 80 of the first valve body 79 is inserted into the medium diameter hole 73 via the sealing member 81 so as to be able to advance and retreat.
- the distal end of the rod portion 80 projects into the lock chamber 10.
- the outer peripheral surface of the O-ring 83 fitted in the outer peripheral groove 82a of the valve body 82 of the first valve body 79 is a valve surface 83a, and a convex portion 84 as a valve seat portion is provided on the inner peripheral wall of the cylindrical holding member 76.
- Can be The air passage 66 communicates with the valve chamber 78.
- a compression spring 85 as urging means mounted between the bottom surface of the first valve case 77 and the valve body 82 moves the first valve body 79 in a direction in which the valve surface 83a is separated from the valve seat 84a of the projection 84. Energize.
- the second detection valve 65 is configured as follows, as shown in FIGS.
- a second mounting hole 91 is formed in the lower end wall 3 in the vertical direction.
- the second mounting hole 91 has a large-diameter hole 92, a medium-diameter hole 93, and a small-diameter hole 94 provided with a female screw portion 92 a in order from the lower surface side of the lower end wall 3.
- the cylindrical holding member 96 is screwed into the first valve case 97.
- a cylindrical holding member 96 is fixed to a step 95 between the female screw 92a and the medium diameter hole 93 by a second valve case 97 screwed to the female screw 92a.
- a valve chamber 98 is formed inside the second valve case 97 and the cylindrical holding member 96, and the air passage 66 communicates with the valve chamber 98.
- the second valve body 99 is inserted into the valve chamber 98.
- the rod portion 100 of the second valve body 99 is inserted into the medium diameter hole 93 via the sealing member 101 so as to be able to advance and retreat.
- the distal end of the rod portion 100 projects into the lock chamber 10.
- the outer peripheral surface of the O-ring 103 fitted in the outer peripheral groove 102a of the valve body 102 of the second valve body 99 is a valve surface 103a, and a convex portion 104 as a valve seat is provided on the inner peripheral wall of the cylindrical pressing member 96.
- the air discharge passage 69 communicates with the valve chamber 98.
- the second detection valve 65 is configured as a throttled detection valve as follows.
- a throttle passage 106 for communicating the air passage 66 with the valve chamber 98 is formed on the rear side of the convex portion 104 of the cylindrical pressing member 96.
- the piston body 61 of the piston 59 moves the rod portion 80 of the first valve body 79 downward against the urging force of the compression spring 85 of the first detection valve 64.
- the valve surface 83a of the O-ring 83 constituting the first valve body 79 is sealingly engaged with the valve seat 84a of the convex portion 84 of the cylindrical pressing member 76, and the first detection valve 64 is closed.
- the rod member 60 moves the rod portion 100 of the second valve body 99 downward against the urging force of the compression spring 105 of the second detection valve 65.
- the valve surface 103a of the O-ring 103 constituting the second valve body 99 is separated from the valve seat 104a of the convex portion 104 of the cylindrical pressing member 96, and the second detection valve 65 is opened.
- the air from the air supply path 17 is shut off by the first detection valve 64, and the pressure in the air supply path 17 becomes, for example, 0.2 MPa.
- this pressure is detected by a pressure sensor (not shown), it is detected that the operating state of the piston 59 is the released state.
- the pressurized oil is discharged from the release chamber 11 and the pressurized oil is supplied to the lock chamber 10. Then, the piston 59 starts to rise by the pressure oil in the lock chamber 10, and the lower end of the piston main body 61 is separated from the lower end wall 3 of the housing 1 as shown in FIG. Then, the compression spring 85 of the first detection valve 64 moves the first valve body 79 upward, whereby the valve surface 83a of the O-ring 83 constituting the first valve body 79 is separated from the valve seat 84a, The first detection valve 64 opens.
- the second detection valve 65 is open.
- the first detection valve 64 is opened, and the second detection valve 65 is opened, and the pressure in the air supply path 17 decreases, and the pressure becomes, for example, 0 MPa.
- a pressure sensor not shown
- the compression spring 105 of the second detection valve 65 moves the second valve body 99 upward, whereby the valve surface 103a of the O-ring 103 constituting the second valve body 99 is sealed to the valve seat 104a.
- the second detection valve 65 is closed. Since the second detection valve 65 has the throttle passage 106, a small amount of air flows through the air supply passage 17, the air supply passage 67, the air supply passage 68, the first detection valve 64, the air passage 66, the second detection valve 65, and the air.
- the air flows in the order of the discharge path 69 and the air discharge path 19, and the pressure in the air supply path 17 becomes lower than 0.2 MPa, for example, 0.15 MPa.
- a pressure sensor not shown
- the pressures of 0.2 MPa, 0 MPa, and 0.15 MPa exemplified above can be automatically detected by one pressure sensor capable of setting a plurality of thresholds.
- FIGS. 15 to 19B show a third embodiment of the present invention.
- This embodiment illustrates a case where the cylinder device of the present invention is applied to a swivel clamp.
- the piston 150 inserted into the housing 1 constituting the cylinder device of the third embodiment has a rod hole 150a at the lower portion, and the rod member 113 is inserted into the rod hole 150a.
- the piston 150 has a piston body 151 and the output rod 108 inserted and fixed in a hermetically sealed manner in the cylindrical hole 151a of the piston body 151.
- a compression spring 114 as urging means mounted between the top surface of the rod hole 150a and the flange 113a formed in the middle of the rod member 113 urges the rod member 113 downward. Further, the rod member 113 is operated to be lifted by the annular member 115 fitted into the lower end of the rod hole 150a.
- a clamp arm 109 is fixed to a tip portion of the output rod 108 with a nut 110.
- the lower end of the output rod 108 is inserted into a support hole 3 a formed in the lower end wall 3 of the housing 1.
- pressure oil as a pressure fluid for locking is supplied to and discharged from the lock chamber 111 provided above the piston body 151 via the lock passage 111a.
- pressurized oil as a pressurized fluid for release is supplied and discharged from a release passage 112a to a release chamber 112 provided between the piston body 151 and the lower end wall 3.
- An output rod turning mechanism 116 is provided on the base end side of the flange 108 a formed on the output rod 108, that is, on the lower end of the output rod 108.
- This output rod turning mechanism 116 is configured as follows.
- At least one guide groove 117 formed on the outer wall of the output rod 108 has a linear rectilinear groove 117a and a spiral turning groove 117b formed continuously from above.
- At least one lateral hole 118 is formed in the upper part of the peripheral wall of the support hole 3a, and the engaging ball 119 inserted in the lateral hole 118 is fitted in the guide groove 117.
- a sleeve 120 is rotatably fitted to the outer periphery of the engagement ball 119.
- first detection valve 121 and a second detection valve 122 for detecting the operating state of the piston 150 are provided on the upper side wall and the lower end wall 3 of the housing body 2, respectively.
- Air (compressed air) of a detection fluid from a supply source of compressed air is discharged to the outside (outside world) of the housing 1 through the air passages 123 to 128.
- the first detection valve 121 shown in FIGS. 18A and 18B is similar to the first detection valve 64 shown in FIGS.
- the first detection valve 121 is configured as follows.
- the cylindrical holding member 130 is fixed to the first mounting hole 129 by the first valve case 131 screwed into the female screw portion 129a of the first mounting hole 129 formed in the housing body 2 in the left-right direction.
- the valve body 133a of the first valve body 133 is hermetically inserted into a valve chamber 132 formed inside the first valve case 131 and the cylindrical pressing member 130.
- An air passage 124 and an air passage 125 communicate with the valve chamber 132.
- a rod portion 133b protrudes rightward from the valve body portion 133a, and a distal end portion of the rod portion 133b projects into the lock chamber 111.
- the valve chamber 132 and the lock chamber 111 are separated by a sealing member 152.
- a compression spring 135 is mounted between the first valve case 131 and a bottom surface of a mounting hole formed on a left portion of the first valve body 133.
- the compression spring 135 urges the first valve body 133 in a direction in which the valve surface 136a of the seal member 136 moves away from the valve seat 134a of the projection 134 in the annular holding member 130.
- a communication passage 137 is formed in the first valve body 133.
- the communication passage 137 allows the lock chamber 111 to communicate with the first hydraulic chamber 138 formed on the left side of the first valve body 133.
- the pressure oil supplied to the lock chamber 111 is supplied to the first hydraulic chamber 138 through the communication path 137.
- the pressure receiving area of the valve body 133a (the area of the cross section perpendicular to the axis of the valve body 133a) is the pressure receiving area of the rod 133b (the cross section perpendicular to the axis of the rod 133b). Area).
- the second detection valve 122 shown in FIGS. 19A and 19B is similar to the second detection valve 65 shown in FIGS.
- the second detection valve 122 is configured as follows.
- the cylindrical holding member 140 is fixed to the second mounting hole 139 by the second valve case 141 screwed to the female screw portion 139a of the second mounting hole 139 formed in the lower end wall 3 of the housing 1 in the vertical direction. .
- An air passage 126 and an air discharge passage 127 communicate with a valve chamber 142 in the second detection valve 122.
- the valve body 143a of the second valve body 143 is inserted into the valve chamber 142 in a hermetically sealed manner.
- a distal end of a rod portion 143b projecting upward from the valve body 143a projects into the release chamber 112.
- a compression spring 145 is mounted between the bottom surface of the second valve case 141 and a mounting hole formed in the valve body 143a. The compression spring 145 biases the second valve body 143 in a direction in which the valve surface 146a of the seal member 146 is separated from the valve seat 144a of the projection 144 in the annular holding member 140.
- the communication passage 147 formed in the second valve body 143 connects the release chamber 112 and the second hydraulic chamber 148 formed below the second valve body 143.
- the pressure oil supplied to the release chamber 112 is supplied to the second hydraulic chamber 148 through the communication passage 147.
- the pressure receiving area of the valve body 143a (the area of the cross section perpendicular to the axis thereof) is set larger than the pressure receiving area of the rod portion 143b (the area of the cross section perpendicular to the axis thereof). .
- the second detection valve 122 is further configured as a throttled detection valve as follows.
- a throttle passage 149 for communicating the air passage 126 with the air passage 127 is formed on the rear side of the convex portion 144 of the cylindrical holding member 140.
- the pressurized oil is discharged from the release chamber 112 and supplied to the lock chamber 111. Then, the piston body 151 moves the output rod 108 downward by the pressure oil in the lock chamber 111. First, the output rod 108 descends while turning clockwise by the output rod turning mechanism 116. When the piston body 151 descends a small distance while turning, the pressing force to the left by the pressure oil in the lock chamber 111 and the rightward pressure by the pressure oil in the first hydraulic chamber 138 of the first detection valve 121 The first valve element 133 is moved rightward by the difference between the pressing force and the rightward urging force of the compression spring 135, and the first detection valve 121 is opened as shown in FIG. 18B.
- the second detection valve 122 is also opened as shown in FIG. 19A. Therefore, the compressed air from the compressed air source is discharged from the air passage 123 to the outside through the air passage 128.
- the switch detects that the pressure in the air passage is lower than the first set pressure (first threshold) of the switch for detecting the pressure in the air passage 123 and the like. Further, when the output rod 108 descends while turning, the distal end of the clamp arm 109 is moved above the clamp target W, as shown in FIG. At this time, the lower end surface of the rod member 113 is in contact with the upper end surface of the second valve body 143 of the second detection valve 122, or is separated with a slight gap.
- compressed air from the compressed air supply source is discharged from the air passages 123 to 127 and the throttle passage 149 to the outside through the air passage 128.
- the pressure in the air passage exceeds the first set pressure (first threshold value) of the switch, and the second set pressure (second threshold value) set higher than the first set value. Is detected by the switch.
- the second valve body 143 is raised by the differential force between the downward pressing force of the release chamber 112 by the pressure oil and the upward pressing force by the pressure of the second hydraulic chamber 148, and the second detection valve 122 is turned on.
- the valve is opened.
- the piston 150 moves upward while rotating counterclockwise by the output rod rotating mechanism 116.
- the piston main body 151 moves to a position slightly lower than the upper limit position, the piston main body 151 comes into contact with the rod portion 133b of the first detection valve 121.
- the piston body 151 moves the first valve body 133 to the left, and the first detection valve 121 is closed.
- the piston main body 151 is received by the upper wall of the housing 1, and the output rod 108 stops moving up to the release state.
- the switch detects that the pressure in the air passage 123 exceeds the second set pressure of the switch.
- the first detection valve 121 is provided with the compression spring 135, so that when the pressure oil in the first hydraulic chamber 138 is discharged through the lock chamber 111, the rightward biasing force of the compression spring 135 is applied to the first detection valve 121.
- the state where the one valve body 133 is projected into the lock chamber 111 is maintained.
- the second detection valve 122 also includes the compression spring 145, the upward urging force of the compression spring 145 causes the second valve body 143 to protrude into the release chamber 112, as in the case of the first detection valve 121. To maintain.
- the first detection valve 12 and the second detection valve 13 may be interchanged. That is, the second detection valve 13 (detection valve with throttle) may be arranged on the upstream side, and the first detection valve 12 may be arranged on the downstream side (similarly in the third embodiment).
- the paths in the housing 1 of the air passages 14 and 15 for connecting the detection valves 12 and 13 in series may be changed (the same applies to the third embodiment).
- air may be supplied from the air discharge paths 18, 69, 127 to the respective detection valves 12, 13, 64, 65, 121, 122 and discharged to the air supply paths 16, 67, 124.
- the air instead of discharging air from the air supply path 16 through the detection valve 12 and the detection valve 13 in order and discharging from the air discharge path 18, Alternatively, the air may be discharged from the air supply path 16 through the detection valve 13 and the detection valve 12 in order from the air discharge path 18.
- the second valve body 49 and the throttle member 56 may be formed integrally, that is, from one material.
- the second detection valve 13 (detection valve with throttle) has a throttle passage (hole 56a) in the detection valve 13.
- a throttle member 107 for the detection valve is mounted outside the detection valve 13, for example, in the housing 1.
- a detection valve with a throttle having a throttle passage may be provided.
- the engagement ball 32 may be omitted, and the large diameter portion 7a of the output rod 7 may directly push the rod portion 30 of the first valve body 29 of the first detection valve 12. .
- the first detection valve 64 included in the cylinder device according to the second embodiment may be used instead of the first detection valve 12. Further, in the cylinder device according to the second embodiment, the first detection valve 12 included in the cylinder device according to the first embodiment may be used instead of the first detection valve 64.
- the second detection valve 65 constituting the cylinder device according to the second embodiment is a normally closed (NC) throttled detection valve that is closed when no external force is applied.
- the second detection valve 65 is changed to a normally open (NO) throttled detection valve that is opened when no external force is applied, and the changed normally open (NO) throttled detection valve is replaced with a second one.
- the second detection valve 13 may be used instead of the second detection valve 13.
- two detection valves are used in each of the embodiments to detect the locked state and the released state of the piston.
- a detection valve may be further added for detecting the overstroke of the piston. That is, the cylinder device may include three or more detection valves.
- the first detection valve 12 (64) and the second detection valve 13 (65) (spring advance type detection valve) constituting the cylinder devices of the first and second embodiments are replaced by the cylinder device of the third embodiment. May be replaced with a first detection valve 121 and a second detection valve 122 (a hydraulic advance type detection valve).
- the pressure fluid for locking and release may be a compressed gas, such as compressed air or compressed nitrogen gas, instead of pressurized oil.
- the cylinder device of the present invention is not limited to the link type clamp and the swivel type clamp, but may be another type of clamp. Further, the present invention is not limited to the clamp, and may be another actuator, for example, a reciprocating device driven by an electric motor and a ball screw shaft or a gear.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
その従来技術は、次のように構成されている。
Claims (6)
- ハウジング(1)と、
前記ハウジング(1)に挿入されたピストン(5、59、150)であって、ロック側とリリース側とに軸方向へ移動するピストン(5、59、150)と、
前記ハウジング(1)に設けられた複数の検出弁(12・13、64・65、121・122)であって、前記ピストン(5、59、150)の作動状態を検出する複数の検出弁(12・13、64・65、121・122)と、
前記ハウジング(1)に形成されたエア通路(14・15、66、125・126)であって、前記複数の検出弁(12・13、64・65、121・122)を直列に連通させるエア通路(14・15、66、125・126)と、
を備え、
前記複数の検出弁(12・13、64・65、121・122)のうちの一部が、絞り通路(56a、106、107a、149)を有する絞り付検出弁(13、65、122)とされている、
シリンダ装置。 - 請求項1のシリンダ装置において、
前記絞り付検出弁(13)は、
前記ハウジング(1)に形成された弁室(48)に進退可能に挿入された弁体(49)であって、前記弁室(48)に収容された付勢手段(55)によって付勢される弁体(49)と、
前記弁体(49)の弁面(53a)に対向する弁座(54a)と、
を備え、
前記弁体(49)のロッド部(50)とは反対側の端部中央に前記絞り通路(56a)が設けられている、
シリンダ装置。 - 請求項2のシリンダ装置において、
前記弁体(49)は、
端部に前記ロッド部(50)が設けられた弁本体(52)と、
前記弁本体(52)の前記ロッド部(50)とは反対側の端部中央に固定された絞り部材(56)であって、前記絞り通路としての孔(56a)が形成された絞り部材(56)と、
を備える、
シリンダ装置。 - 請求項1のシリンダ装置において、
前記絞り付検出弁(57)は、
前記ハウジング(1)に形成された弁室(48)に進退可能に挿入された弁体(49)であって、前記弁室(48)に収容された付勢手段(55)によって付勢される弁体(49)と、
前記弁体(49)の弁面(53a)に対向する弁座(54a)と、
を備え、
前記絞り通路としての孔(58)が前記弁体(49)に形成されている、または前記絞り通路としての溝(70)が前記弁面(53a)若しくは前記弁座(54a)に形成されている、
シリンダ装置。 - 請求項1から4のいずれかのシリンダ装置において、
前記複数の検出弁(64・65)が、前記ハウジング(1)の下端部に設けられている、
シリンダ装置。 - 請求項1から5のいずれかのシリンダ装置において、
前記ピストン(5、59、150)の作動状態がロック状態およびリリース状態のときに、前記複数の検出弁(12・13、64・65、121・122)のうちの少なくとも1つが閉弁している、
シリンダ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US17/258,591 US11994155B2 (en) | 2018-08-17 | 2019-07-30 | Cylinder device |
KR1020217001066A KR102479256B1 (ko) | 2018-08-17 | 2019-07-30 | 실린더 장치 |
CN201980053541.1A CN112585363B (zh) | 2018-08-17 | 2019-07-30 | 缸体装置 |
JP2020537404A JP7390029B2 (ja) | 2018-08-17 | 2019-07-30 | シリンダ装置 |
EP19850167.8A EP3800358B1 (en) | 2018-08-17 | 2019-07-30 | Cylinder device |
Applications Claiming Priority (2)
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JP2018153569 | 2018-08-17 | ||
JP2018-153569 | 2018-08-17 |
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PCT/JP2019/029894 WO2020036060A1 (ja) | 2018-08-17 | 2019-07-30 | シリンダ装置 |
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US (1) | US11994155B2 (ja) |
EP (1) | EP3800358B1 (ja) |
JP (1) | JP7390029B2 (ja) |
KR (1) | KR102479256B1 (ja) |
CN (1) | CN112585363B (ja) |
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CN114523250A (zh) * | 2022-01-25 | 2022-05-24 | 浙矿重工股份有限公司 | 一种双工位自锁夹紧器 |
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JP2013082025A (ja) * | 2011-10-07 | 2013-05-09 | Pascal Engineering Corp | 流体圧シリンダ及びクランプ装置 |
JP2017015237A (ja) | 2015-06-26 | 2017-01-19 | 株式会社コスメック | シリンダ装置 |
JP2019132322A (ja) * | 2018-01-30 | 2019-08-08 | トヨタ自動車株式会社 | シリンダ装置 |
Family Cites Families (2)
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US20140033909A1 (en) * | 2012-08-03 | 2014-02-06 | Robert M. Murphy | Methods and apparatus to control movement of a component |
JP6092710B2 (ja) | 2013-01-22 | 2017-03-08 | 株式会社コスメック | シリンダ装置 |
-
2019
- 2019-07-30 JP JP2020537404A patent/JP7390029B2/ja active Active
- 2019-07-30 WO PCT/JP2019/029894 patent/WO2020036060A1/ja unknown
- 2019-07-30 US US17/258,591 patent/US11994155B2/en active Active
- 2019-07-30 KR KR1020217001066A patent/KR102479256B1/ko active IP Right Grant
- 2019-07-30 CN CN201980053541.1A patent/CN112585363B/zh active Active
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JP2013082025A (ja) * | 2011-10-07 | 2013-05-09 | Pascal Engineering Corp | 流体圧シリンダ及びクランプ装置 |
JP2017015237A (ja) | 2015-06-26 | 2017-01-19 | 株式会社コスメック | シリンダ装置 |
JP2019132322A (ja) * | 2018-01-30 | 2019-08-08 | トヨタ自動車株式会社 | シリンダ装置 |
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Title |
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See also references of EP3800358A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114523250A (zh) * | 2022-01-25 | 2022-05-24 | 浙矿重工股份有限公司 | 一种双工位自锁夹紧器 |
CN114523250B (zh) * | 2022-01-25 | 2023-06-02 | 浙矿重工股份有限公司 | 一种双工位自锁夹紧器 |
Also Published As
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US20210164499A1 (en) | 2021-06-03 |
JPWO2020036060A1 (ja) | 2021-08-12 |
KR102479256B1 (ko) | 2022-12-20 |
EP3800358A1 (en) | 2021-04-07 |
CN112585363A (zh) | 2021-03-30 |
KR20210020114A (ko) | 2021-02-23 |
CN112585363B (zh) | 2023-02-17 |
EP3800358B1 (en) | 2022-11-02 |
JP7390029B2 (ja) | 2023-12-01 |
US11994155B2 (en) | 2024-05-28 |
EP3800358A4 (en) | 2021-08-11 |
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