CN103567812A - Positioning oil cylinder for positioning drum - Google Patents

Positioning oil cylinder for positioning drum Download PDF

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Publication number
CN103567812A
CN103567812A CN201310542106.XA CN201310542106A CN103567812A CN 103567812 A CN103567812 A CN 103567812A CN 201310542106 A CN201310542106 A CN 201310542106A CN 103567812 A CN103567812 A CN 103567812A
Authority
CN
China
Prior art keywords
piston rod
drum
piston
cylinder
thick
Prior art date
Application number
CN201310542106.XA
Other languages
Chinese (zh)
Other versions
CN103567812B (en
Inventor
夏晓平
陈保国
张在平
杨春宏
邱国仙
姜梦飞
Original Assignee
常州工程职业技术学院
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 常州工程职业技术学院 filed Critical 常州工程职业技术学院
Priority to CN201310542106.XA priority Critical patent/CN103567812B/en
Publication of CN103567812A publication Critical patent/CN103567812A/en
Application granted granted Critical
Publication of CN103567812B publication Critical patent/CN103567812B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • B23Q16/04Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
    • B23Q16/06Rotary indexing
    • B23Q16/065Rotary indexing with a continuous drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1414Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1447Pistons; Piston to piston rod assemblies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1457Piston rods

Abstract

The invention relates to a positioning oil cylinder for positioning a drum. The positioning oil cylinder comprises a cylinder body, a piston rod as well as a piston installed in the cylinder body, wherein the piston rod in the cylinder body consists of a thick part and a thin part, a step which pushes the piston rod to move towards the drum under the action of hydraulic oil is formed in a position where the thick part and the thin part are connected, the piston is sleeved and mounted at the thick part of the piston rod glidingly, and the thick part of the piston rod is provided with a limit component for preventing the piston from slipping off to the thin part. The positioning oil cylinder has the benefits as follows: the bolt force provided by the step for the piston rod is moderate, meanwhile, the piston and the piston rod of the positioning oil cylinder are in a split type, and the piston can move freely on the piston rod, so that a certain impulsive force on a limit bulge loop can be produced when the piston is pulled out of the piston rod, and the pulling out of the piston is facilitated.

Description

For the positional cylinder that drum is positioned
Technical field
The present invention relates to a kind of positional cylinder for drum is positioned.
Background technology
Drum assembly comprises rack-mounted drum, calibration driving mechanism, detent mechanism and drum clamp mechanism, drum is arranged on frame by drum axle, on drum, there are a plurality of stations, calibration driving mechanism drives drum rotation to each station by calibration requirement, detent mechanism comprises the locating hole of rack-mounted positional cylinder and drum side, when drum rotates to station position, the piston rod of positional cylinder stretches out the locating hole that inserts drum side, drum is positioned, drum clamp mechanism promotes drum axle and moves vertically, drum is abutted against in frame, realizing drum clamps.For realizing accurate location, preferably locating hole is designed to taper hole, the head end of the insertion locating hole of piston rod is designed to the conehead coordinating with taper hole, if but adopt common oil cylinder as positional cylinder, exist piston rod insertion force excessive, behind positional cylinder location, because tensioner between the conehead of piston rod and locating hole tightly together, be difficult to piston rod to be extracted the defect of locating hole.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of piston rod insertion force little, and easily extract the positional cylinder of the locating hole of taper.
The technical solution adopted for the present invention to solve the technical problems is: a kind of positional cylinder for drum is positioned, comprise cylinder body, piston rod and be arranged on the piston in cylinder body, piston rod in cylinder body is divided into thick portion and thin portion, at the joining place of thick portion and thin portion, be formed under hydraulic oil effect and promote piston rod to the step of drum one side shifting, piston is sleeved on the thick portion of piston rod slidably, in the thick portion of piston rod, has and prevents that piston landing is to the limiting component of thin portion.
Limiting component is position limiting convex ring.
Further limit, on positional cylinder, there is detection piston rod and whether move to the position of insertion locating hole and the checkout gear whether piston rod moves to the position of extracting locating hole.
Further limit, checkout gear comprises posts a letter dish and detects two switches of posting a letter of the dish position of posting a letter, and one end away from drum of piston rod passes cylinder body, and the dish of posting a letter is arranged on one end away from drum of piston rod.
The invention has the beneficial effects as follows: the latch power that offers piston rod due to step is moderate, simultaneously because piston and the piston rod of positional cylinder are split type, and piston can move freely on piston rod.Piston can produce certain impulse force to position limiting convex ring when extracting piston rod, contributes to piston rod to extract.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described;
Fig. 1 is the structural representation of positional cylinder of the present invention;
Fig. 2 is the overall structure schematic diagram that adopts the drum assembly positioning of positional cylinder of the present invention;
Wherein, 1. drum, 2. positional cylinder, 2-1. piston rod, 2-2. piston, 2-3. step, 2-4. position limiting convex ring, the 2-5. dish of posting a letter, the 2-6. switch of posting a letter, 3-1. servomotor, 3-2. decelerator, 3-3. Timing Belt, 3-4. synchronous pulley.
The specific embodiment
As shown in Figure 1, positional cylinder 2 comprises cylinder body, piston rod 2-1 and is arranged on the piston 2-2 in cylinder body, cylinder body is arranged in frame by flange, piston rod 2-1 in cylinder body is divided into thick portion and thin portion, at the joining place of thick portion and thin portion, be formed under hydraulic oil effect and promote piston rod 2-1 to the step 2-3 of drum 1 one side shiftings, piston 2-2 is sleeved on the thick portion of piston rod 2-1 slidably, thick portion at piston rod 2-1 has the limiting component that prevents the extremely thin portion of piston 2-2 landing, and limiting component is specially position limiting convex ring 2-4.On positional cylinder 2, there is detection piston rod 2-1 and whether move to the position of insertion locating hole and the checkout gear whether piston rod 2-1 moves to the position of extracting locating hole.Checkout gear comprises post a letter dish 2-5 and two switch 2-6 that post a letter that detect the dish 2-5 position of posting a letter, the switch 2-6 that posts a letter adopts approach switch, one end away from drum 1 of piston rod 2-1 passes cylinder body, and the dish 2-5 that posts a letter is arranged on one end away from drum 1 of piston rod 2-1.
As shown in Figure 2, a kind of drum assembly, comprises rack-mounted drum 1, calibration driving mechanism, detent mechanism and drum clamp mechanism, and drum 1 is arranged on frame by drum axle, has a plurality of stations on drum 1, on each station, has work piece holder.Calibration driving mechanism and detent mechanism are positioned at the same side of drum 1, and drum clamp mechanism is positioned at the opposite side of drum 1.Frame comprises the left and right sidesing wall plate of drum both sides, be positioned at left and right sidesing wall plate top connection left and right sidesing wall plate determine beam.Detent mechanism comprises the locating hole of rack-mounted positional cylinder 2 and drum 1 side, when drum 1 rotates to station position, the piston rod 2-1 of positional cylinder 2 stretches out the locating hole that inserts drum 1 side, drum 1 is positioned, locating hole is taper hole, and the head end of the insertion locating hole of piston rod 2-1 is the conehead coordinating with taper hole.
Because the piston 2-2 of positional cylinder 2 and piston rod 2-1 are split type, and piston 2-2 can move freely on piston rod 2-1.When positional cylinder 2 location, hydraulic pressure oil enters in cylinder body from right cavity of cylinder, the pressure-acting of hydraulic pressure oil is on piston 2-2 and piston rod 2-1, make piston 2-2 to drum 1 one side shiftings, piston rod 2-1 is also promoted to drum 1 one side shiftings by hydraulic pressure oil simultaneously, until the conehead of piston rod 2-1 inserts locating hole, now, physical dimension, to guarantee that the position limiting convex ring 2-4 on piston rod 2-1 has certain distance apart from piston 2-2.When the conehead of piston rod 2-1 inserts locating hole, its active force also be can't help piston 2-2 and is provided, but is provided by the step 2-3 on piston rod 2-1, because step 2-3 size is little, therefore offers the latch power of piston rod 2-1 not very big, and this is just meeting instructions for use; And contrary, when pulling pin, by the hydraulic pressure oil that enters the left chamber of oil cylinder, promote piston 2-2 to be moved to the left, after the position limiting convex ring 2-4 that meets piston rod 2-1, drive piston rod 2-1 to be moved to the left, complete the action of pulling pin.
When the conehead of piston rod 2-1 inserts after locating hole, owing to producing blocking force, the difficulty that becomes that makes to pull pin, and piston 2-2 moves right while meeting position limiting convex ring 2-4 and produces certain impulse force, contributes to piston rod 2-1 to extract.This is the unique distinction of this positional cylinder 2 just.
Calibration driving mechanism drives drum 1 rotation to each station by calibration requirement, calibration driving mechanism comprises servomotor 3-1, decelerator 3-2, Timing Belt 3-3 and synchronous pulley 3-4, synchronous pulley 3-4 is arranged on the output shaft of drum axle and decelerator 3-2, between synchronous pulley 3-4 on decelerator 3-2 and the synchronous pulley 3-4 on drum axle, by Timing Belt 3-3, drive and be connected, the main shaft of servomotor 3-1 directly inserts the input of decelerator 3-2, and servomotor 3-1 rotates by decelerator 3-2 drive drum wheel shaft.
The drum assembly of 8 stations of take is example, and its course of action is as follows:
1, machine tool numerical control system sends drum and starts to turn round instruction, and servomotor 3-1 rotates, and drives a gapless decelerator 3-2, the speed reducing ratio i=250 of this decelerator.
2, at the output of decelerator 3-2, one synchronous pulley 3-4 has been installed, this synchronous pulley 3-4 drives Timing Belt, transmits motion to a synchronous pulley 3-4 of drum axle head, and modulus, the number of teeth of two synchronous pulley 3-4 are identical, realize 1:1 transmission.
3, the synchronous pulley 3-4 of drum end just drives drum 1 to realize revolution, when station of drum 1 revolution (during 8 station, design angle of revolution is 22.5 °), turns round the switch of posting a letter and sends signal.
4, system receives after the signal sending, and sends the action of positional cylinder 2 location, and three positional cylinders 2 that are arranged in the right wallboard of drum 1 move immediately, complete location, and the approach switch of the checkout gear of positional cylinder 2 also sends settling signal.
5, system receives after this signal, sends drum and clamps instruction, and clamping cylinder 4-3 moves immediately, drives locking screw cover 4-1 to rotate, and drum 1 clamps immediately, and clamping switch sends the signal having clamped.

Claims (4)

1. the positional cylinder for drum is positioned, it is characterized in that: comprise cylinder body, piston rod (2-1) and be arranged on the piston (2-2) in cylinder body, piston rod in cylinder body (2-1) is divided into thick portion and thin portion, at the joining place of thick portion and thin portion, be formed under hydraulic oil effect and promote piston rod (2-1) to the step (2-3) of drum (1) one side shifting, piston (2-2) is sleeved on the thick portion of piston rod (2-1) slidably, in the thick portion of piston rod (2-1), has and prevents that piston (2-2) landing is to the limiting component of thin portion.
2. the positional cylinder for drum is positioned according to claim 1, is characterized in that: described limiting component is bulge loop (2-4).
3. the positional cylinder for drum is positioned according to claim 1, is characterized in that: on described positional cylinder (2), have detection piston rod (2-1) and whether move to the position of insertion locating hole and the checkout gear whether piston rod (2-1) moves to the position of extracting locating hole.
4. the positional cylinder for drum is positioned according to claim 3, it is characterized in that: described checkout gear comprises post a letter two switches of posting a letter (2-6) of dish (2-5) position of post a letter dish (2-5) and detection, one end away from drum (1) of piston rod (2-1) passes cylinder body, and the dish (2-5) of posting a letter is arranged on one end away from drum (1) of piston rod (2-1).
CN201310542106.XA 2013-11-05 2013-11-05 For the positional cylinder that drum is positioned CN103567812B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310542106.XA CN103567812B (en) 2013-11-05 2013-11-05 For the positional cylinder that drum is positioned

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310542106.XA CN103567812B (en) 2013-11-05 2013-11-05 For the positional cylinder that drum is positioned

Publications (2)

Publication Number Publication Date
CN103567812A true CN103567812A (en) 2014-02-12
CN103567812B CN103567812B (en) 2016-06-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104044012A (en) * 2014-06-17 2014-09-17 山东鲁南机床有限公司 Internal gear indexing positioning device for milling spindle of machine tool
CN105583315A (en) * 2015-12-25 2016-05-18 东莞市瑞辉机械制造有限公司 Stamping machine and detachable cross rod thereof
CN106930996A (en) * 2017-04-21 2017-07-07 西安电子工程研究所 A kind of hydraulic cylinder for fixed mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1445030A (en) * 1973-12-21 1976-08-04 Mak Maschinenbau Gmbh Hydraulic locking devices
CN201437802U (en) * 2009-07-22 2010-04-14 宁波优耐特模具有限公司 Hydraulic cylinder
CN202012526U (en) * 2011-03-03 2011-10-19 成都飞机工业(集团)有限责任公司 Bi-rod hydraulic cylinder with three stations and double actions
CN202031920U (en) * 2011-03-22 2011-11-09 泸州市巨力液压有限公司 Hydraulic oil cylinder with cushioning device
CN202718965U (en) * 2012-05-31 2013-02-06 安徽振邺机械有限公司 Conveniently installed lifting oil cylinder for forklift with buffering function
CN203579312U (en) * 2013-11-05 2014-05-07 常州工程职业技术学院 Locating oil cylinder used for locating drum wheel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1445030A (en) * 1973-12-21 1976-08-04 Mak Maschinenbau Gmbh Hydraulic locking devices
CN201437802U (en) * 2009-07-22 2010-04-14 宁波优耐特模具有限公司 Hydraulic cylinder
CN202012526U (en) * 2011-03-03 2011-10-19 成都飞机工业(集团)有限责任公司 Bi-rod hydraulic cylinder with three stations and double actions
CN202031920U (en) * 2011-03-22 2011-11-09 泸州市巨力液压有限公司 Hydraulic oil cylinder with cushioning device
CN202718965U (en) * 2012-05-31 2013-02-06 安徽振邺机械有限公司 Conveniently installed lifting oil cylinder for forklift with buffering function
CN203579312U (en) * 2013-11-05 2014-05-07 常州工程职业技术学院 Locating oil cylinder used for locating drum wheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104044012A (en) * 2014-06-17 2014-09-17 山东鲁南机床有限公司 Internal gear indexing positioning device for milling spindle of machine tool
CN105583315A (en) * 2015-12-25 2016-05-18 东莞市瑞辉机械制造有限公司 Stamping machine and detachable cross rod thereof
CN106930996A (en) * 2017-04-21 2017-07-07 西安电子工程研究所 A kind of hydraulic cylinder for fixed mechanism

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Effective date of registration: 20210202

Address after: Room 407-2-6, building C, Tian'an Digital City, 588 Changwu South Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province 213100

Patentee after: CHANGZHOU XIAOGUO INFORMATION SERVICES Co.,Ltd.

Address before: 213164 Jiangsu Province, Changzhou city Wujin District Gehu Lake Road No. 3

Patentee before: CHANGZHOU VOCATIONAL INSTITUTE OF ENGINEERING

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