CN102644633A - Optional-position locking balancing oil cylinder - Google Patents

Optional-position locking balancing oil cylinder Download PDF

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Publication number
CN102644633A
CN102644633A CN2012101322747A CN201210132274A CN102644633A CN 102644633 A CN102644633 A CN 102644633A CN 2012101322747 A CN2012101322747 A CN 2012101322747A CN 201210132274 A CN201210132274 A CN 201210132274A CN 102644633 A CN102644633 A CN 102644633A
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China
Prior art keywords
locking
cylinder
piston
cover
sleeve
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Pending
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CN2012101322747A
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Chinese (zh)
Inventor
杨树明
徐玉坤
杨康信
汪金龙
袁光涛
蒋庄德
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN2012101322747A priority Critical patent/CN102644633A/en
Publication of CN102644633A publication Critical patent/CN102644633A/en
Pending legal-status Critical Current

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Abstract

An optional-position locking balancing oil cylinder comprises an oil cylinder portion and a hydraulic locking portion. The oil cylinder portion comprises an upper cylinder cover arranged at an upper end of a cylinder barrel, a lower cylinder cover arranged at a lower end of the cylinder barrel and a guide sleeve in the lower cylinder cover. An inner cavity of the cylinder barrel is provided with a piston and a piston rod connected with the piston, and the other end of the piston rod penetrates through the guide sleeve and an inner bore cavity of the lower cylinder cover to extend out of the cylinder barrel to enter the locking portion. The hydraulic locking portion comprises a locking sleeve, an upper end cover, a lower end cover, a guide sleeve, a cone-shaped locking sleeve, an unlocking piston and a disc spring. The optional-position locking balancing oil cylinder enables a machine tool to balance gravity of a vertical moving component in the working state, reduces control difficulty of a servo motor and a precise ball screw, improves moving stability of the servo motor and the precise ball screw, can lock the piston on the condition of sudden power down, limits movements of the vertical moving component connected with the piston, and guarantees that a cutter and a workpiece cannot be damaged. The optional-position locking balancing oil cylinder can also lock the piston under a non-operating state, balances the gravity of the vertical moving component, reduces deformation of the precise ball screw and improves positioning accuracy and repeated positioning accuracy of the machine tool.

Description

A kind of arbitrary position locking balancing cylinder
Technical field
The invention belongs to machinery manufacturing technology field, particularly and a kind of balancing cylinder that can lock at any time at an arbitrary position that is applicable to high-speed, high precision lathe vertical motion parts gravitational equilibrium.
Technical background
The self gravitation of the vertical motion axle of vertical and gantry machine tool can have very big influence to the dynamic response of lathe, also influences the power of its drive motor simultaneously, the gravity of vertical motion parts is carried out balance seem extremely important.Existing machine tool mainly adopts two kinds of balance methods, and the one, the counterweigh method, promptly the weight of mounted movable parts is equipped with the equilibrium block of equivalent weight; Its advantage is simple in structure, reliable operation; But the weight counterweigh need take bigger installing space, is superimposed upon the lathe on the horizontal motion axle for the vertical motion axle, has obviously improved the power demand of horizontal axis drive motor; Influenced the dynamic characteristic of lathe, the increase of drive motor power also can cause the increase of thermal deformation of machine tool.Another kind method is hydraulic pressure or air pressure balance method, usually adopts hydro-cushion in the reality, promptly adopts hydraulic jack to come balancing gravity.But common hydraulic lock oil cylinder is the latching ram bar at an arbitrary position, can not lock when this just makes power down to cause damage.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing technology; The object of the present invention is to provide a kind of arbitrary position locking balancing cylinder; Adopt the wedge lock principle; Utilize cone locking cover and cooperating of locking sleeve, dish spring to realize piston rod locking at an arbitrary position, improved the Security after the power down in the machine tooling process.
In order to achieve the above object, technological scheme of the present invention is:
A kind of arbitrary position locking balancing cylinder; Comprise hydraulic jack and hydraulic lock mechanism two-part, hydraulic jack comprises cylinder barrel 2, and cylinder cap 1 is installed in the end of cylinder barrel 2; The other end is installed cylinder cap 6 down; Establish piston 4 and the piston rod 14 that is attached thereto in the cylinder barrel 2, the guide sleeve 5 of the underpart installed inside piston rod 14 of cylinder barrel 2, the other end of piston rod 14 pass the endoporus of guide sleeve 5 and following cylinder cap 6 and stretch out cylinder barrel 2; The upper end cap 7 that is connected with following cylinder cap 6 that hydraulic lock mechanism comprises locking sleeve 9 and is installed in locking sleeve 9 upper end portions; Lower end cap 13 is installed in locking sleeve 9 underparts; The underpart installed inside guiding oil sealing cover 12 of locking sleeve 9 is installed release piston 11 between guiding oil sealing cover 12 and the locking sleeve 9, and cone locking cover 10 is installed in the locking sleeve 9; Between cone locking cover 10 and the upper end cap 7 dish spring 8 is installed, is driven into hydraulic fluid port b on the locking sleeve 9; After the piston rod 14 of hydraulic jack stretches out hydraulic jack; Endoporus through upper end cap 7 gets into hydraulic lock mechanism; Pass the endoporus of dish spring 8, cone locking cover 10, release piston 11 and the guiding oil sealing cover 12 of hydraulic lock mechanism successively, and pass from the endoporus of lower end cap 13.
Described release piston 11 is designed to stairstepping, and the filler opening b of hydraulic lock mechanism and locking sleeve 9, release piston 11 constitute seal oil chamber.
Described cone locking cover 10 has certain cone angle θ, and cone locking is overlapped 10 sides and opened micro-groove, and well width is d.
It is material that described cone locking cover 10, guide sleeve 5 and guiding oil sealing cover 12 all adopt copper.
The present invention adopts the wedge lock principle, utilizes cone locking cover and cooperating of locking sleeve, dish spring to realize piston rod locking at an arbitrary position, has improved the Security after the power down in the machine tooling process.Locking balancing cylinder of the present invention can use in parallel connection, with the filler opening UNICOM of each oil cylinder, the pressure oil introducing can be guaranteed to have good synchronism between the different oil cylinders.
Description of drawings
Fig. 1 is the structural representation of locking balancing cylinder in arbitrary position of the present invention.
Fig. 2 is the front view of cone locking cover 10 of the present invention.
Fig. 3 is the sectional view of cone locking cover 10 of the present invention.
Fig. 4 is the sectional view of release piston 11 of the present invention.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and working principle are done further explain.
Referring to Fig. 1, a kind of arbitrary position locking balancing cylinder comprises hydraulic jack and hydraulic lock mechanism two-part; Hydraulic jack comprises cylinder barrel 2, and cylinder cap 1 is installed in the end of cylinder barrel 2, and the other end is installed cylinder cap 6 down; Establish piston 4 and the piston rod 14 that is attached thereto in the cylinder barrel 2; Piston 4 is connected through card key 3 with piston rod 14, and the underpart installed inside piston rod guide sleeve 5 of cylinder barrel 2 is provided with sealing configuration between guide sleeve 5 and the cylinder barrel 2; The other end of piston rod 14 passes the endoporus of guide sleeve 5 and following cylinder cap 6 and stretches out cylinder barrel 2, and sealing configuration is set between piston rod 14 and the guide sleeve 5; The upper end cap 7 that is connected with following cylinder cap 6 that hydraulic lock mechanism comprises locking sleeve 9 and is installed in locking sleeve 9 upper end portions, lower end cap 13 is installed in locking sleeve 9 underparts, the underpart installed inside guiding oil sealing cover 12 of locking sleeve 9; Between guiding oil sealing cover 12 and the locking sleeve 9 seal arrangement is set; Between guiding oil sealing cover 12 and the locking sleeve 9 release piston 11 is installed, between release piston 11 and locking sleeve 9, the guiding oil sealing cover 12 sealing configuration is set all, release piston 11 is designed to stairstepping; Cone locking cover 10 is installed in the locking sleeve 9; With reference to Fig. 2, cone locking cover 10 has certain tapering, cooperates with locking sleeve 9 interior step cone structures; Between cone locking cover 10 and the upper end cap 7 dish spring 8 is installed, is had filler opening b on the locking sleeve 9; After the piston rod 14 of hydraulic jack stretches out hydraulic jack; Endoporus through upper end cap 7 gets into hydraulic lock mechanism; Pass the endoporus of dish spring 8, cone locking cover 10, release piston 11 and the guiding oil sealing cover 12 of hydraulic lock mechanism successively, and pass from the endoporus of lower end cap 13.
With reference to Fig. 4 and Fig. 1, release piston 11 is stepped, and the filler opening b of hydraulic lock mechanism and locking sleeve 9, release piston 11 constitute seal oil chamber.
With reference to Fig. 3, cone locking cover 10 has certain cone angle θ, and cone locking is overlapped 10 sides and opened micro-groove, and well width is d.
It is material that described cone locking cover 10, guide sleeve 5 and guiding oil sealing cover 12 all adopt copper.
Working principle of the present invention is following, and in filler opening b obstructed when oil, dish spring force 8 makes cone locking cover 10 cooperate with locking sleeve 9, and the little distortion frictionally latching ram bar 14 of generation is overlapped in cone locking this moment.After lathe was started working, the logical oil of filler opening b promoted 11 motions of release piston, and overcame dish spring 8 elastic force and back down cone locking cover 10, and the cone locking cover discharges piston rod, accomplishes release.After accomplishing release, oil inlet hole a feeds constant pressure oil, the gravity of the vertical shifting axle of balance lathe.Suddenly after the power down, hydraulic fluid port b oil pressure does not reach release pressure, and dish spring 8 elastic force are pressed into locking sleeve 9 with cone locking cover 10, produce little distortion latching ram bar 14.
With reference to Fig. 3; If the amount of deformation of dish spring is that x, elasticity coefficient are k; The tapering of cone locking cover is θ; Friction factor is μ between cone locking cover and the piston rod, and then coupling mechanism force is
Figure BDA0000159714370000041
With reference to Fig. 4, if the locking sleeve internal diameter is D 1, the release piston external diameter is D 2, release pressure then p = 4 μ Kx Sin 2 θ D 2 2 - D 1 2 .
The present invention is applicable to the high-speed, high precision numerical control machine tool with vertical motion axle, reduces the quiet distortion of precision ball screw when perhaps shutting down as power down protection.

Claims (4)

1. balancing cylinder is locked in an arbitrary position; It is characterized in that comprise hydraulic jack and hydraulic lock mechanism two-part, hydraulic jack comprises cylinder barrel (2); Cylinder cap (1) is installed in the end of cylinder barrel (2); The other end is installed cylinder cap (6) down, the piston rod (14) that is provided with piston (4) in the cylinder barrel (2) and is attached thereto, the guide sleeve (5) of the underpart installed inside piston rod (14) of cylinder barrel (2); The other end of piston rod (14) passes the endoporus of guide sleeve (5) and following cylinder cap (6) and stretches out cylinder barrel (2), and sealing configuration is set between piston rod (14) and the guide sleeve (5); The upper end cap (7) that is connected with following cylinder cap (6) that hydraulic lock mechanism comprises locking sleeve (9) and is installed in locking sleeve (9) upper end portion; Lower end cap (13) is installed in locking sleeve (9) underpart; The underpart installed inside guiding oil sealing cover (12) of locking sleeve (9); Release piston (11) is installed between guiding oil sealing cover (12) and the locking sleeve (9); Cone locking cover (10) is installed in the locking sleeve (9), dish spring (8) is installed between cone locking cover (10) and the upper end cap (7), have filler opening (b) on the locking sleeve (9); After the piston rod of hydraulic jack (14) stretches out hydraulic jack; Endoporus through upper end cap (7) gets into hydraulic lock mechanism; Pass the endoporus of dish spring (8), cone locking cover (10), release piston (11) and the guiding oil sealing cover (12) of hydraulic lock mechanism successively, and pass from the endoporus of lower end cap (13).
2. a kind of arbitrary position locking balancing cylinder according to claim 1 is characterized in that filler opening of hydraulic lock mechanism (b) and locking sleeve (9), release piston (11) constitute seal oil chamber.
3. a kind of arbitrary position locking balancing cylinder according to claim 1 is characterized in that described cone locking cover (10) has certain cone angle θ, and micro-groove is opened in cone locking cover (10) side, and well width is d.
4. a kind of arbitrary position locking balancing cylinder according to claim 1 is characterized in that it is material that described cone locking cover (10), guide sleeve (5) and guiding oil sealing cover (12) all adopt copper.
CN2012101322747A 2012-05-02 2012-05-02 Optional-position locking balancing oil cylinder Pending CN102644633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101322747A CN102644633A (en) 2012-05-02 2012-05-02 Optional-position locking balancing oil cylinder

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438053A (en) * 2013-09-16 2013-12-11 大连宏远气动液压船舶辅机有限公司 Brake cylinder with intelligent positioning and clamping device
CN104989699A (en) * 2015-08-04 2015-10-21 山东同力液压装备有限公司 Reinforced self-locking wind-power hydraulic cylinder
CN105065363A (en) * 2015-08-04 2015-11-18 山东同力液压装备有限公司 High-precision lateral-force-resistant self-locking wind power hydraulic cylinder
CN107052940A (en) * 2017-03-31 2017-08-18 佛山市顺德区俐锋机械制造有限公司 A kind of glass edge-grinding machine emery wheel automatic correction device
CN107813336A (en) * 2016-09-12 2018-03-20 杭州国辰正域科技有限公司 Hydraulic locking revolute joint
CN108362464A (en) * 2017-12-29 2018-08-03 重庆大学 Hydraulic-driven integrated unit for half soft wall of continous way transonic wind tunnel jet pipe
CN110081043A (en) * 2019-05-13 2019-08-02 沈阳东北电力调节技术有限公司 There are two the hydraulic cylinders of latched position for tool
CN110388349A (en) * 2019-06-28 2019-10-29 徐州仁和液压科技有限公司 A kind of hydraulic cylinder that operational stability is high
CN111168416A (en) * 2020-01-21 2020-05-19 北京优备加科技有限公司 Locking platform and machine tool system
CN113048115A (en) * 2021-02-25 2021-06-29 首钢京唐钢铁联合有限责任公司 Anti-sliding cylinder structure, system and method

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CN201045362Y (en) * 2007-04-28 2008-04-09 武汉华翰液动机械有限责任公司 Cylinder rod locking locater
CN201087610Y (en) * 2007-09-14 2008-07-16 李昌玉 Gear transmission mechanism of central lock
CN201377480Y (en) * 2009-04-13 2010-01-06 吴航 Hydraulic cylinder locking device
CN101934477A (en) * 2010-09-16 2011-01-05 安阳鑫盛机床股份有限公司 Automatic hydraulic lock block
CN201714745U (en) * 2010-08-02 2011-01-19 北京机械设备研究所 Disc clamp-type mechanical locking oil cylinder
CN102003433A (en) * 2010-12-04 2011-04-06 李元义 Mechanical locking device for hydraulic cylinder
CN201866011U (en) * 2010-11-22 2011-06-15 北京机械设备研究所 Locking device of rectilinear motion oil cylinder
CN201902390U (en) * 2010-12-10 2011-07-20 邵阳维克液压股份有限公司 Hydraulic locking device
CN201973001U (en) * 2011-04-14 2011-09-14 天津优瑞纳斯液压机械有限公司 Locking device for piston rod of hydraulic cylinder
CN102213251A (en) * 2011-06-28 2011-10-12 扬州斯普森机械制造有限公司 Hydraulic cylinder with locking mechanism
CN202015899U (en) * 2011-04-07 2011-10-26 济南铸造锻压机械研究所有限公司 Synchronous lifting device of laser cutting machine workbench

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907495A (en) * 1986-04-30 1990-03-13 Sumio Sugahara Pneumatic cylinder with integral concentric hydraulic cylinder-type axially compact brake
JP2003343514A (en) * 2002-05-29 2003-12-03 Shin Caterpillar Mitsubishi Ltd Cylinder unit and crawler vehicle
CN201045362Y (en) * 2007-04-28 2008-04-09 武汉华翰液动机械有限责任公司 Cylinder rod locking locater
CN201087610Y (en) * 2007-09-14 2008-07-16 李昌玉 Gear transmission mechanism of central lock
CN201377480Y (en) * 2009-04-13 2010-01-06 吴航 Hydraulic cylinder locking device
CN201714745U (en) * 2010-08-02 2011-01-19 北京机械设备研究所 Disc clamp-type mechanical locking oil cylinder
CN101934477A (en) * 2010-09-16 2011-01-05 安阳鑫盛机床股份有限公司 Automatic hydraulic lock block
CN201866011U (en) * 2010-11-22 2011-06-15 北京机械设备研究所 Locking device of rectilinear motion oil cylinder
CN102003433A (en) * 2010-12-04 2011-04-06 李元义 Mechanical locking device for hydraulic cylinder
CN201902390U (en) * 2010-12-10 2011-07-20 邵阳维克液压股份有限公司 Hydraulic locking device
CN202015899U (en) * 2011-04-07 2011-10-26 济南铸造锻压机械研究所有限公司 Synchronous lifting device of laser cutting machine workbench
CN201973001U (en) * 2011-04-14 2011-09-14 天津优瑞纳斯液压机械有限公司 Locking device for piston rod of hydraulic cylinder
CN102213251A (en) * 2011-06-28 2011-10-12 扬州斯普森机械制造有限公司 Hydraulic cylinder with locking mechanism

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438053B (en) * 2013-09-16 2015-12-23 大连宏远气动液压船舶辅机有限公司 There is the brake cylinder of intelligent positioning clamp device
CN103438053A (en) * 2013-09-16 2013-12-11 大连宏远气动液压船舶辅机有限公司 Brake cylinder with intelligent positioning and clamping device
CN104989699A (en) * 2015-08-04 2015-10-21 山东同力液压装备有限公司 Reinforced self-locking wind-power hydraulic cylinder
CN105065363A (en) * 2015-08-04 2015-11-18 山东同力液压装备有限公司 High-precision lateral-force-resistant self-locking wind power hydraulic cylinder
CN104989699B (en) * 2015-08-04 2017-01-25 山东同力液压装备有限公司 Reinforced self-locking wind-power hydraulic cylinder
CN105065363B (en) * 2015-08-04 2017-05-24 山东同力液压装备有限公司 High-precision lateral-force-resistant self-locking wind power hydraulic cylinder
CN107813336A (en) * 2016-09-12 2018-03-20 杭州国辰正域科技有限公司 Hydraulic locking revolute joint
CN107813336B (en) * 2016-09-12 2024-01-30 仙居行至科技有限公司 Hydraulic locking rotary joint
CN107052940B (en) * 2017-03-31 2023-08-15 广东俐锋智能科技有限公司 Automatic correction device for grinding wheel of glass edge grinding machine
CN107052940A (en) * 2017-03-31 2017-08-18 佛山市顺德区俐锋机械制造有限公司 A kind of glass edge-grinding machine emery wheel automatic correction device
CN108362464A (en) * 2017-12-29 2018-08-03 重庆大学 Hydraulic-driven integrated unit for half soft wall of continous way transonic wind tunnel jet pipe
CN108362464B (en) * 2017-12-29 2021-11-09 中国空气动力研究与发展中心设备设计及测试技术研究所 Hydraulic drive integrated unit for continuous transonic wind tunnel nozzle semi-flexible wall
CN110081043B (en) * 2019-05-13 2023-11-28 沈阳东北电力调节技术有限公司 Hydraulic cylinder with two locking positions
CN110081043A (en) * 2019-05-13 2019-08-02 沈阳东北电力调节技术有限公司 There are two the hydraulic cylinders of latched position for tool
CN110388349A (en) * 2019-06-28 2019-10-29 徐州仁和液压科技有限公司 A kind of hydraulic cylinder that operational stability is high
CN111168416A (en) * 2020-01-21 2020-05-19 北京优备加科技有限公司 Locking platform and machine tool system
CN113048115A (en) * 2021-02-25 2021-06-29 首钢京唐钢铁联合有限责任公司 Anti-sliding cylinder structure, system and method

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Application publication date: 20120822