JPS57161307A - Adjusting device of stroke in cylinder mechanism - Google Patents

Adjusting device of stroke in cylinder mechanism

Info

Publication number
JPS57161307A
JPS57161307A JP15215781A JP15215781A JPS57161307A JP S57161307 A JPS57161307 A JP S57161307A JP 15215781 A JP15215781 A JP 15215781A JP 15215781 A JP15215781 A JP 15215781A JP S57161307 A JPS57161307 A JP S57161307A
Authority
JP
Japan
Prior art keywords
oil passage
piston rod
stroke
oil
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15215781A
Other languages
Japanese (ja)
Other versions
JPS6127603B2 (en
Inventor
Yuji Tsuchiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amada Co Ltd
Original Assignee
Amada Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amada Co Ltd filed Critical Amada Co Ltd
Priority to JP15215781A priority Critical patent/JPS57161307A/en
Publication of JPS57161307A publication Critical patent/JPS57161307A/en
Publication of JPS6127603B2 publication Critical patent/JPS6127603B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke

Landscapes

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

Abstract

PURPOSE:To easily perform adjustment of the stroke of a piston rod with simple constitution, by providing a stroke adjusting member to an end part of the piston rod and providing a throttle valve mechanism, in an oil passage, between one of the cylinder chambers and an oil pressure source, at a face-to-face position to said stroke adjusting member. CONSTITUTION:In application of the invention to an oil hydraulic press, if a selector valve 147 is switched to the left side, working fluid from an oil hydraulic pump 145 passes through an oil passage 155, throttle valve mechanism 159, and oil passage 157 to flow into the first chamber 127a of a cylinder 123. While fluid in the second chamber 127b flows out from an oil passage 153 to a tank T, then a piston rod 131 is protrusively moved downward. In accordance with this motion, the end of a stroke adjusting member 137 is adapted to a protrusive pin 177 of a throttle valve body 173 to press down this valve, then a flow amount to the oil passage 157 is reduced while a flow amount guided to a chamber 183a in a control valve 169 is increased to open said valve 169, and the fluid flows into the tank T from an oil passage 203, in this way, movement of the piston rod 131 is stopped.
JP15215781A 1981-09-28 1981-09-28 Adjusting device of stroke in cylinder mechanism Granted JPS57161307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15215781A JPS57161307A (en) 1981-09-28 1981-09-28 Adjusting device of stroke in cylinder mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15215781A JPS57161307A (en) 1981-09-28 1981-09-28 Adjusting device of stroke in cylinder mechanism

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9163377A Division JPS5427671A (en) 1977-07-30 1977-07-30 Stroke adjusting device of cylinder mfchanism

Publications (2)

Publication Number Publication Date
JPS57161307A true JPS57161307A (en) 1982-10-04
JPS6127603B2 JPS6127603B2 (en) 1986-06-26

Family

ID=15534263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15215781A Granted JPS57161307A (en) 1981-09-28 1981-09-28 Adjusting device of stroke in cylinder mechanism

Country Status (1)

Country Link
JP (1) JPS57161307A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125139A (en) * 1991-06-27 1992-06-30 Tadashi Ohta Hydraulic drive mechanism in machine tool
EP1793050A2 (en) * 2005-12-05 2007-06-06 Liebherr-Hydraulikbagger GmbH Hydraulic cylinder with stroke end damping.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125139A (en) * 1991-06-27 1992-06-30 Tadashi Ohta Hydraulic drive mechanism in machine tool
EP1793050A2 (en) * 2005-12-05 2007-06-06 Liebherr-Hydraulikbagger GmbH Hydraulic cylinder with stroke end damping.
EP1793050B1 (en) * 2005-12-05 2015-10-14 Liebherr-Hydraulikbagger GmbH Hydraulic cylinder with stroke end damping.

Also Published As

Publication number Publication date
JPS6127603B2 (en) 1986-06-26

Similar Documents

Publication Publication Date Title
CA2211474C (en) Pressure intensifier for fluids, particularly for hydraulic liquids
US5307729A (en) Device for stroke end cushioning and speed regulating the movement of a piston in a fluid pressure cylinder
US4407150A (en) Apparatus for supplying and controlling hydraulic swaging pressure
KR0130578B1 (en) Hydraulic pilot valve
KR900009325A (en) Hydraulic Shock Absorber with Adjustable Damping Force
FR2354464A1 (en) FLUID CIRCUIT INCLUDING A CONTROL MECHANISM
JP3640447B2 (en) Fluid intensifier
TW221400B (en)
ES2026213T3 (en) HYDRAULIC CONTROL DEVICE.
US5237905A (en) Device for limiting a working stroke of a hydraulic cylinder
US3456297A (en) Hydraulic mould locking devices
JPS57161307A (en) Adjusting device of stroke in cylinder mechanism
US3167083A (en) Sequence valve
KR880007219A (en) Cushion for slide of press machine, shared pressure booster drive system
EP0428406B1 (en) Reciprocating actuator
SU1715211A3 (en) Exhaust valve of internal combustion engine
JPH04214914A (en) Mechanism to control exhaust valve of reciprocating motion internal combustion engine
DE826666C (en) Hydraulic regulator for injection pumps of internal combustion engines
US4260338A (en) Multicylinder pump for viscous liquids
JPS57204343A (en) Oil hydraulic shock absorber
SU1566069A2 (en) Pump
RU2030632C1 (en) Pump
DE2427809A1 (en) Push button valve - has push rod-operated stem in inlet space, and is fitted with plunger and bore for pressure compensation
RU2067215C1 (en) Pump
RU2027215C1 (en) Regulator device