CN103523718B - A kind of two dimensional motion constant force erecting by overhang - Google Patents
A kind of two dimensional motion constant force erecting by overhang Download PDFInfo
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- CN103523718B CN103523718B CN201310492799.6A CN201310492799A CN103523718B CN 103523718 B CN103523718 B CN 103523718B CN 201310492799 A CN201310492799 A CN 201310492799A CN 103523718 B CN103523718 B CN 103523718B
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Abstract
A kind of two dimensional motion constant force erecting by overhang, comprises constant force and exports cylinder, air-float guide rail, line slideway, motor, laser displacement sensor, support etc.; Described air-float guide rail comprises air supporting cover and air-bearing shafts, vertical rack-mount of described line slideway, described line slideway has parallel two groups, described constant force exports cylinder two, described constant force exports cylinder barrel two ends and is set on line slideway by slide block, the output shaft that described constant force exports cylinder is connected with air-bearing shafts by connecting device, described air supporting cover is sleeved on air-bearing shafts, described air supporting cover is by suspension strop linking objective workpiece, described motor can drive slide block to move, and described laser displacement sensor is arranged on limiting stopper.The present invention adopts constant force to export cylinder and realizes constant force hanging, realizes level and follows, precision is high, good stability by air-float guide rail.
Description
Technical field
The present invention relates to two-dimensional constant force erecting by overhang.
Background technology
Two dimensional motion constant force erecting by overhang be to target workpiece realize vertical direction constant force hanging and level on motion accompanying, other external force are not introduced to target workpiece, target workpiece state of kinematic motion are not had an impact.Prior art normally adopts suspension strop the slide block of line slideway and target workpiece to be coupled together, the drift angle of suspension strop is measured by angular transducer, the motion accompanying of horizontal direction is realized by electric machine control slide block movement, gone out the size of power on suspension strop again by force sensor measuring, realize the servo-actuated of vertical direction and constant force output by tightening up or loosening suspension strop.But because sensor measurement exists certain error, electric machine control precision is not high, is difficult to eliminate fluctuation and error, in specific implementation process, there is a lot of problem.Because air-float guide rail has frictionless feature, therefore gentle for target workpiece empty boasting is coupled together, the frictionless motion be enclosed within air-bearing shafts by air supporting realizes that horizontal motion is passive follows, hung by counterweight and target workpiece again, the constant force realizing vertical direction exports and motion accompanying, but when target workpiece does acceleration or deceleration motion, counterweight can produce a subsidiary load acted in target workpiece because of the impact of self inertia power, and the larger impact of counterbalance mass is larger, therefore this method is only applicable to the occasion of target workpiece low speed or uniform movement.
Summary of the invention
Large for existing two dimensional motion constant force erecting by overhang measured error, follow the problems such as precision is not high, loss of weight counterweight inertia force influence is large, the invention provides a kind of adopt constant force to export cylinder realizes constant force hanging, air-float guide rail realizes that level is followed, precision is high, the two-dimensional constant force of good stability follows erecting by overhang.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of two dimensional motion constant force erecting by overhang, comprises constant force and exports cylinder, air-float guide rail, line slideway, motor, laser displacement sensor, support; Described air-float guide rail comprises air supporting cover and air-bearing shafts.
Described constant force exports cylinder and comprises cylinder barrel, connecting rod piston, end cap, output shaft, limiting stopper.Described piston bush is contained in cylinder barrel, and described cylinder barrel two ends, by end cap seal, have the two laterally zygomorphic axial notches in place, described axial notch two ends mounting limit block in the middle part of described cylinder barrel.Described connecting rod piston comprises the piston rod of the first piston of two ends projection, the second piston and centre, described first piston, between the second piston and cylinder barrel, leave minimum gap, connect output shaft in the middle part of described piston rod, described output shaft is through the axial notch on cylinder barrel.
Vertical rack-mount of described line slideway, described line slideway has parallel two groups, described constant force exports cylinder two, described constant force exports cylinder barrel two ends and is set on line slideway by slide block, the output shaft that described constant force exports cylinder is connected with air-bearing shafts by connecting device, described air supporting cover is sleeved on air-bearing shafts, and described air supporting cover is by suspension strop linking objective workpiece.
Described motor is rack-mount, and described motor can drive slide block to move.Described laser displacement sensor is arranged on limiting stopper, and described laser displacement sensor is relative with position of output axle.
Described cylinder barrel two ends are respectively equipped with the first admission port and the second admission port.Described first admission port is connected apportioning valve and storage tank with the second admission port respectively by tracheae.
Described first piston and the second piston are uniformly distributed along the circumference radial cutoff port, and described first piston and the second piston are beaten axial blind hole along end face respectively and formed induction opening, and described induction opening communicates with described radial cutoff port; Described first piston and the second piston are respectively equipped with a circle groove near end, in described groove, uniform radial blind holes forms first and unloads pore, beat axial blind hole from piston rod one end respectively to first piston and the second piston to be formed and second unload pore, described first unloads pore and second unloads pore and communicates.
In described radial cutoff port, orifice plug is installed;
Described radial cutoff port in axial direction has two groups at least; Described radial cutoff port, induction opening and first unload pore and second and unload between pore mutually isolated.
Mentality of designing of the present invention and advantage show:
Because air-float guide rail does not exist friction force, therefore target workpiece is overlapped with air supporting and is connected, air supporting cover can on air-bearing shafts frictionless motion, realize the passive of horizontal direction and follow, the motion of target workpiece is not had an impact.Vertical direction exports cylinder by two constant force and realizes constant force hanging, constant force export cylinder connecting rod piston can in cylinder barrel frictionless motion, connecting rod piston is connected with air-bearing shafts by output shaft, as long as the pressure reduction that therefore passing ratio valve and storage tank control to pass into cylinder barrel and connecting rod piston two ends air pressure keeps constant, the force value then cylinder barrel exported keeps constant, constant to the hanging force of target workpiece.
The stroke exporting cylinder due to constant force is limited, is therefore initiatively followed by line slideway; Constant force exports the cylinder barrel connection sliding block of cylinder, laser displacement sensor can measure the displacement of connecting rod piston, then corresponding distance is moved by electric machine control slide block moving belt moveable cylinder, ensure that connecting rod piston is positioned at its effective travel all the time, thus realize the constant force hanging of long distance, on the other hand, reduce because connecting rod piston motion causes cylinder barrel cavity volume to change the impact produced air pressure, further increase the precision of constant force hanging.
Cylinder barrel and piston are Integral design, and processing is simple on the one hand, can meet assembly precision requirement on the other hand.
Uniform radial cutoff port on connecting rod piston, the high pressure gas in cylinder barrel enter radial cutoff port by induction opening, form air film in the gap of cylinder barrel and piston, and two place's air films are that piston provides support and lubricates, structure and plenum system is simple, load-carrying capacity is good.
Be equipped with pressure relief groove near radial cutoff port, pressure relief groove communicates with extraneous normal pressure, prevents cylinder barrel inner high voltage gas from entering floating gap on the one hand and has an impact to air film, play sealing function, forms atmospheric area on the other hand in gap, promotes the formation of air film.
Have the two laterally zygomorphic axial notches in place in the middle part of cylinder barrel, connect output shaft in the middle part of piston rod, output shaft is through the axial notch on cylinder barrel, and the range of movement of output shaft is in axial notch.
Cylinder barrel two ends are respectively equipped with two admission ports, admission port connects apportioning valve and storage tank by tracheae, on output shaft, the size of output force value is relevant with the pressure size that cylinder barrel two ends input, passing ratio valve and storage tank control the pressure size of cylinder barrel two ends input air pressure, ensure that the pressure difference at cylinder barrel two ends remains unchanged, constant force can be realized and export.
Advantage of the present invention shows: precision is high, good stability.
Accompanying drawing explanation
Fig. 1 is that two-dimensional constant force follows erecting by overhang schematic diagram
Fig. 2 is that constant force exports cylinder schematic diagram
Fig. 3 is cylinder barrel schematic perspective view
Fig. 4 is connecting rod piston schematic diagram
Detailed description of the invention
A kind of two dimensional motion constant force erecting by overhang, comprises constant force and exports cylinder, air-float guide rail, line slideway 18, motor 19, laser displacement sensor 13, support 20; Described air-float guide rail comprises air supporting cover 17 and air-bearing shafts 16.
Described constant force exports cylinder and comprises cylinder barrel 3, connecting rod piston 6, end cap 1, output shaft 8, limiting stopper 10.Piston 6 is sleeved in cylinder barrel 3, cylinder barrel 3 two ends are sealed by end cap 1, the two laterally zygomorphic axial notches in place are had in the middle part of cylinder barrel 3, axial notch two ends mounting limit block 10, connecting rod piston 6 comprises the piston rod of the first piston of two ends projection, the second piston and centre, described first piston, leave minimum gap between the second piston and cylinder barrel 3, connect output shaft 8 in the middle part of piston rod, output shaft 8 is through the axial notch on cylinder barrel 3.
What described line slideway 18 was vertical is arranged on support 20, described line slideway 18 has parallel two groups, described constant force exports cylinder two, described constant force exports cylinder barrel 3 two ends and is set on two line slideways 18 by slide block 14, the output shaft 8 that described constant force exports cylinder is connected with air-bearing shafts 16 by connecting device 15, described air supporting cover 17 is sleeved on air-bearing shafts 16, and described air supporting cover 17 is by suspension strop linking objective workpiece 21.
Described motor 19 is arranged on support 20, and described motor 19 can drive slide block 14 to move.Described laser displacement sensor 13 is arranged on limiting stopper 10, and described laser displacement sensor 13 is relative with output shaft 8 position.
Cylinder barrel 3 two ends are respectively equipped with the first admission port 2 and the second admission port 9.Described first admission port 2 is connected apportioning valve and storage tank with the second admission port 9 respectively by tracheae.
First piston and the second piston are uniformly distributed along the circumference radial cutoff port 5, install orifice plug in radial cutoff port; First piston and the second piston are beaten axial blind hole along end face respectively and are formed induction opening 7, and induction opening 7 communicates with described radial cutoff port 5; First piston and the second piston are respectively equipped with a circle groove 4 near end, in groove 4, uniform radial blind holes forms first and unloads pore 11, beat axial blind hole from piston rod one end respectively to first piston and the second piston to be formed and second unload pore 12, first unloads pore 11 and second unloads pore 12 and communicates.
Radial cutoff port 5 in axial direction has two groups at least; Radial cutoff port 5, induction opening 7 and first unload pore 11 and second and unload between pore 12 mutually isolated.
Claims (1)
1. a two dimensional motion constant force erecting by overhang, is characterized in that: comprise constant force and export cylinder, air-float guide rail, line slideway, motor, laser displacement sensor, support; Described air-float guide rail comprises air supporting cover and air-bearing shafts;
Described constant force exports cylinder and comprises cylinder barrel, connecting rod piston, end cap, output shaft, limiting stopper; Described piston bush is contained in cylinder barrel, and described cylinder barrel two ends, by end cap seal, have the two laterally zygomorphic axial notches in place, described axial notch two ends mounting limit block in the middle part of described cylinder barrel; Described connecting rod piston comprises the piston rod of the first piston of two ends projection, the second piston and centre, described first piston, between the second piston and cylinder barrel, leave minimum gap, connect output shaft in the middle part of described piston rod, described output shaft is through the axial notch on cylinder barrel;
Vertical rack-mount of described line slideway, described line slideway has parallel two groups, described constant force exports cylinder two, described constant force exports cylinder barrel two ends and is set on line slideway by slide block, the output shaft that described constant force exports cylinder is connected with air-bearing shafts by connecting device, described air supporting cover is sleeved on air-bearing shafts, and described air supporting cover is by suspension strop linking objective workpiece;
Described motor is rack-mount, and described motor can drive slide block to move; Described laser displacement sensor is arranged on limiting stopper, and described laser displacement sensor is relative with position of output axle;
Described cylinder barrel two ends are respectively equipped with the first admission port and the second admission port, and described first admission port is connected apportioning valve and storage tank with the second admission port respectively by tracheae;
Described first piston and the second piston are uniformly distributed along the circumference radial cutoff port, and described first piston and the second piston are beaten axial blind hole along end face respectively and formed induction opening, and described induction opening communicates with described radial cutoff port; Described first piston and the second piston are respectively equipped with a circle groove near end, in described groove, uniform radial blind holes forms first and unloads pore, beat axial blind hole from piston rod one end respectively to first piston and the second piston to be formed and second unload pore, described first unloads pore and second unloads pore and communicates;
In described radial cutoff port, orifice plug is installed;
Described radial cutoff port in axial direction has two groups at least; Described radial cutoff port, induction opening and first unload pore and second and unload between pore mutually isolated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310492799.6A CN103523718B (en) | 2013-10-18 | 2013-10-18 | A kind of two dimensional motion constant force erecting by overhang |
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| CN201310492799.6A CN103523718B (en) | 2013-10-18 | 2013-10-18 | A kind of two dimensional motion constant force erecting by overhang |
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| CN103523718A CN103523718A (en) | 2014-01-22 |
| CN103523718B true CN103523718B (en) | 2015-10-28 |
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| CN107421373B (en) * | 2017-08-01 | 2019-04-12 | 上海法信机电设备制造有限公司 | A kind of fresh-water cooler supporting and positioning device |
| CN110901966A (en) * | 2019-11-29 | 2020-03-24 | 北京卫星制造厂有限公司 | Air floatation suspension type gravity unloading device for space deployable mechanism |
| CN113277447B (en) * | 2021-05-20 | 2022-06-14 | 江苏理工学院 | Large-scale tubular structure auto-control handling fixing device of modularization |
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| JPH10218550A (en) * | 1997-02-04 | 1998-08-18 | Nisshin Steel Co Ltd | Hoisting device |
| CN201250022Y (en) * | 2008-08-15 | 2009-06-03 | 山东矿机迈科建材机械有限公司 | Automatic setting machine |
| CN201647833U (en) * | 2010-04-27 | 2010-11-24 | 青岛港（集团）有限公司 | Driving frequency-conversion anti-swing system and crane with same |
| CN201817231U (en) * | 2010-08-13 | 2011-05-04 | 浙江金刚汽车有限公司 | Balance crane |
| CN202864837U (en) * | 2012-10-25 | 2013-04-10 | 绍兴康可胶囊有限公司 | Capsule hanging vehicle used for capsule automatic production line |
| CN203545612U (en) * | 2013-10-18 | 2014-04-16 | 浙江工商大学 | Two-dimensional movement constant-force hanging device |
-
2013
- 2013-10-18 CN CN201310492799.6A patent/CN103523718B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218550A (en) * | 1997-02-04 | 1998-08-18 | Nisshin Steel Co Ltd | Hoisting device |
| CN201250022Y (en) * | 2008-08-15 | 2009-06-03 | 山东矿机迈科建材机械有限公司 | Automatic setting machine |
| CN201647833U (en) * | 2010-04-27 | 2010-11-24 | 青岛港（集团）有限公司 | Driving frequency-conversion anti-swing system and crane with same |
| CN201817231U (en) * | 2010-08-13 | 2011-05-04 | 浙江金刚汽车有限公司 | Balance crane |
| CN202864837U (en) * | 2012-10-25 | 2013-04-10 | 绍兴康可胶囊有限公司 | Capsule hanging vehicle used for capsule automatic production line |
| CN203545612U (en) * | 2013-10-18 | 2014-04-16 | 浙江工商大学 | Two-dimensional movement constant-force hanging device |
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Granted publication date: 20151028 Termination date: 20161018 |