CN102692319B - Passive follow-up force-applied linear guiderail pair test bed with controllable load - Google Patents
Passive follow-up force-applied linear guiderail pair test bed with controllable load Download PDFInfo
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- CN102692319B CN102692319B CN201210191538.6A CN201210191538A CN102692319B CN 102692319 B CN102692319 B CN 102692319B CN 201210191538 A CN201210191538 A CN 201210191538A CN 102692319 B CN102692319 B CN 102692319B
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Abstract
The invention relates to a passive follow-up force-applied linear guiderail pair test bed with controllable load. A horizontal load application mechanism is characterized in that a horizontal force application device is connected with a horizontal force application head by a horizontal pull pressure sensor, the end of the horizontal force application head is connected on the side surface of a stressed sliding table, and a base of the horizontal force application device is fixed on a stand by a left side linear guiderail pair; a vertical load application mechanism is characterized in that a vertical force application device is connected with a vertical force application head by a vertical force application device, the end of the vertical force application head is connected at the center of the stressed sliding table, the vertical force application device is arranged on a cross beam of a portal frame, a base at the right side of the portal frame is arranged on the stand by a right side linear guiderail pair, and the left side of the portal frame is fixed on the base of the horizontal force application device. The test bed realizes controllable dynamic load of horizontal load and radial load of the guiderail slider, can more accurately and reliably evaluate the relationship between the properties and service life of the guiderail pair, thus providing reliable test basis for design and maintenance of the guiderail pair.
Description
Technical field
The present invention relates to the servo-actuated application of force line slideway auxiliary of the controlled passive type of a kind of load testing table.
Background technology
Line slideway auxiliary is the conventional guiding parts of mechanical system, in various machinery and equipment, is widely used.The transverse load that its performance and life-span mainly bear with guide rail slide block and radially (perpendicular to guide rail front) load is relevant.Running status by line slideway auxiliary test unit simulation guideway under specific load can evaluate performance and the life-span of guideway, is conducive to set up rationally effectively maintenance schedule, saves a large amount of maintenance costs.Existing line slideway auxiliary test unit, No. 201110321929.0 patented claims " a kind of reconfigurable lead screw pair, guideway accelerated aging electro-hydraulic servo testing platform " of having applied for as applicant drive stressed slide unit to move forward and backward by leading screw driving mechanism, stressed slide unit drives four guide rail slide blocks that are fixed on its lower surface to slide on two guide rails, to simulate the operational process of guideway; Apply transverse load by the side of stressed slide unit to four guide rail slide blocks by the horizontal load maintainer being fixed on support, apply radial load by stressed slide unit to four guide rail slide blocks by vertical (radially) load maintainer being fixed on the portal frame of support.This device can go out guideway in the performance and the life-span that apply in different transverse loads and radial load situation by test assessment.But because the point of application of its horizontal load maintainer and Plumb load mechanism is fixed, do not move with the motion of stressed slide unit; And during when test, stressed slide unit was always kept in motion, the relative distance of the fixing point of application and four guide rail slide blocks changes, thereby the load of distributing to four guide rail slide blocks by stressed slide unit is non-constant, and be subject to the impact of relative distance, stressed slide unit sliding speed, it changes complicated, is difficult to quantitative forecast.Also be the inconvenient accurately control of load that horizontal load maintainer and Plumb load mechanism impose on four guide rail slide blocks.Thereby test unit cannot evaluate load and guideway performance and the relation between the life-span accurately, reliably.
Summary of the invention
The object of this invention is to provide the servo-actuated application of force line slideway auxiliary of the controlled passive type of a kind of load testing table, the controlled dynamic that the mode of the servo-actuated application of force of passive type that adopts this testing table realizes guide rail slide block transverse load and radial load loads, can evaluate more accurately, reliably load and guideway performance and the relation between the life-span, for design and the maintenance of guideway provide more reliable test basis.
The technical solution adopted for the present invention to solve the technical problems is: the servo-actuated application of force line slideway auxiliary of the passive type testing table that a kind of load is controlled, comprise that the bottom surface that leading screw driving mechanism on support, support, two guide rails are installed on respectively the both sides of leading screw driving mechanism, stressed slide unit is connected with leading screw driving mechanism, four angles of stressed slide unit bottom surface are corresponding connected with four guide rail slide blocks, and in four guide rail slide blocks, every two form guideway with corresponding guide rail; The lower surface of stressed slide unit is also connected with grating ruler reading head, and this grating ruler reading head coordinates with the grating main scale being fixed on support, and the side of stressed slide unit has horizontal load maintainer, top to have Plumb load mechanism; It is characterized in that:
The formation of described horizontal load maintainer is: laterally force application apparatus is connected with horizontal application of force head by horizontal pull pressure sensor, laterally application of force cephalic par is connected in the longitudinal center of stressed slide unit side, and laterally the base of force application apparatus is fixed on support by left side line slideway auxiliary;
The formation of described Plumb load mechanism is: vertical force application apparatus is connected with vertical application of force head by vertical pull pressure sensor, vertical application of force cephalic par is connected in the center of stressed slide unit upper surface, vertical force application apparatus is installed on the crossbeam of portal frame, the base on portal frame right side is fixed on support by right side line slideway auxiliary, and the left side of portal frame is connected with the base of horizontal force application apparatus;
Three-way vibration acceleration transducer and temperature sensor are all installed on each guide rail slide block; These sensors and grating ruler reading head are all electrically connected with data collection and control system; Leading screw driving mechanism, laterally load maintainer and Plumb load mechanism are also all electrically connected with data collection and control system.
The course of work and the principle of technique scheme are:
Leading screw driving mechanism drives stressed slide unit lengthwise movement; The displacement signal of stressed slide unit is fed back to data collection and control system by grating ruler reading head, and data collection and control system, according to feedback signal control leading screw driving mechanism, makes stressed slide unit by the accurate lengthwise movement of carrying out of user's parameters.And laterally force application apparatus, vertical force application apparatus are to be movably arranged on support by guideway on the one hand, be connected with stressed slide unit again on the other hand; Therefore, laterally force application apparatus, vertical force application apparatus can be followed the lengthwise movement together of stressed slide unit.Simultaneously, data collection and control system is according to the guide rail slide block of user's input load change curve laterally, radially, control respectively the size of the power output of horizontal load maintainer, Plumb load mechanism, laterally the power of load maintainer, the output of Plumb load mechanism acts on guide rail slide block by stressed slide unit, change by user's request thereby realize transverse load, the radial load that guide rail slide block bears, to simulate the various operating modes of guideway.
When test, data collection and control system gathers vibration signal and the temperature signal of guide rail slide block by three-way vibration acceleration transducer, temperature sensor, thereby obtain assessing load and guideway performance and the required test figure of relation between the life-span, for design and the maintenance of guideway provide test basis more reliably.
Compared with prior art, the invention has the beneficial effects as follows:
One, the present invention is in the time testing, the application of force head (point of application) of horizontal load maintainer and Plumb load mechanism is all followed stressed slide unit and is synchronized with the movement together, the point of application is relative static with four guide rail slide blocks, thereby the load that force application apparatus applies constant acting on four guide rail slide blocks uniformly, the load that each guide rail slide block bears is 1/4 of force application apparatus imposed load, also being that the load change curve that bears of guide rail slide block is in full accord with the application of force change curve of force application apparatus, is only that amplitude narrows down to 1/4.Therefore, apparatus of the present invention are in the time carrying out the performance of line slideway auxiliary and durability test, can realize very easily imposed load accurately, reliably control, thereby can evaluate more accurately, reliably load and guideway performance and the relation between the life-span, for design and the maintenance of guideway provide more reliable test basis.
Two, the horizontal load maintainer of the present invention and Plumb load mechanism are the servo-actuated application of force of passive type, there is no independently driving mechanism, and it is simple in structure, easily implement.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Embodiment
Fig. 1 illustrates, the specific embodiment of the present invention is, the servo-actuated application of force line slideway auxiliary of the passive type testing table that a kind of load is controlled, and its composition is:
Leading screw driving mechanism on support 1, support 12, two guide rails 3 are installed on respectively the both sides of leading screw driving mechanism 2, the bottom surface of stressed slide unit 4 is connected with leading screw driving mechanism 2, four angles of stressed slide unit 4 bottom surfaces are corresponding connected with four guide rail slide blocks 5, and in four guide rail slide blocks 5, every two form guideway with corresponding guide rail 3; The lower surface of stressed slide unit 4 is also connected with grating ruler reading head 15, and this grating ruler reading head 15 coordinates with the grating main scale 18 being fixed on support 1, and the side of stressed slide unit 4 has horizontal load maintainer, top to have Plumb load mechanism.
The formation of described horizontal load maintainer is: laterally force application apparatus 8 is connected by horizontal pull pressure sensor 9 and the horizontal application of force 10, laterally the application of force 10 end are connected in the longitudinal center of stressed slide unit 4 sides, and laterally the base 7 of force application apparatus 8 is fixed on support 1 by left side line slideway auxiliary 6;
The formation of described Plumb load mechanism is: vertical force application apparatus 11 is connected by vertical pull pressure sensor 13 and the vertical application of force 14, the vertical application of force 14 end are connected in the center of stressed slide unit 4 upper surfaces, vertical force application apparatus 11 is installed on the crossbeam of portal frame 12, the base 16 on portal frame 12 right sides is fixed on support 1 by right side line slideway auxiliary 17, and the left side of portal frame 12 is connected with the base 7 of horizontal force application apparatus 8.
On each guide rail slide block 5, three-way vibration acceleration transducer and temperature sensor are all installed; These sensors and grating ruler reading head 15 are all electrically connected with data collection and control system; Leading screw driving mechanism 2, laterally load maintainer and Plumb load mechanism are also all electrically connected with data collection and control system.
Vertical force application apparatus of the present invention and laterally force application apparatus can be existing various force application apparatus, as hydraulic cylinder, cylinder, electric cylinder etc.The leading screw driving mechanism that the present invention adopts can be existing various leading screw driving mechanism, as motor-driven screw mechanism.
Claims (1)
1. the servo-actuated application of force line slideway auxiliary of the passive type testing table that load is controlled, comprise that the bottom surface that leading screw driving mechanism (2), two guide rails (3) on support (1), support (1) are installed on respectively the both sides of leading screw driving mechanism (2), stressed slide unit (4) is connected with leading screw driving mechanism (2), be connected corresponding with four guide rail slide blocks (5) of four angles of stressed slide unit (4) bottom surface, in four guide rail slide blocks (5), every two form guideway with corresponding guide rail (3); The lower surface of stressed slide unit (4) is also connected with grating ruler reading head (15), this grating ruler reading head (15) coordinates with the grating main scale (18) being fixed on support (1), and the side of stressed slide unit (4) has horizontal load maintainer, top to have Plumb load mechanism; It is characterized in that:
The formation of described horizontal load maintainer is: laterally force application apparatus (8) is connected with horizontal application of force head (10) by horizontal pull pressure sensor (9), laterally application of force head (10) end is connected in the longitudinal center of stressed slide unit (4) side, and laterally the base (7) of force application apparatus (8) is fixed on support (1) by left side line slideway auxiliary (6);
The formation of described Plumb load mechanism is: vertical force application apparatus (11) is connected with vertical application of force head (14) by vertical pull pressure sensor (13), vertical application of force head (14) end is connected in the center of stressed slide unit (4) upper surface, vertical force application apparatus (11) is installed on the crossbeam of portal frame (12), it is upper that the base (16) on portal frame (12) right side is fixed on support (1) by right side line slideway auxiliary (17), and the left side of portal frame (12) is fixed on the base (7) of horizontal force application apparatus (8);
On each described guide rail slide block (5), three-way vibration acceleration transducer and temperature sensor are all installed; These sensors and grating ruler reading head (15) are all electrically connected with data collection and control system; Leading screw driving mechanism (2), laterally load maintainer and Plumb load mechanism are also all electrically connected with data collection and control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210191538.6A CN102692319B (en) | 2012-06-12 | 2012-06-12 | Passive follow-up force-applied linear guiderail pair test bed with controllable load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210191538.6A CN102692319B (en) | 2012-06-12 | 2012-06-12 | Passive follow-up force-applied linear guiderail pair test bed with controllable load |
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| CN102692319A CN102692319A (en) | 2012-09-26 |
| CN102692319B true CN102692319B (en) | 2014-05-21 |
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Families Citing this family (11)
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|---|---|---|---|---|
| CN102974961B (en) * | 2012-11-14 | 2015-07-15 | 奇瑞汽车股份有限公司 | Gantry sliding driving mechanism |
| CN102937491B (en) * | 2012-11-30 | 2014-07-16 | 中国航空工业集团公司北京长城计量测试技术研究所 | Force value loading device for surface temperature sensor calibration |
| CN104406804A (en) * | 2014-09-03 | 2015-03-11 | 上海大学 | Universal durability testing machine |
| CN105627960B (en) * | 2016-03-14 | 2018-06-15 | 安徽机电职业技术学院 | One kind is used for the welded detection tool device of torsion beam |
| CN106289768A (en) * | 2016-09-20 | 2017-01-04 | 山东博特精工股份有限公司 | Leading screw, guide rail application system simulated condition laboratory table |
| CN107139019A (en) * | 2017-05-24 | 2017-09-08 | 上海嘉幸自动化设备科技有限公司 | A kind of electronic cylinder structure controlled for machine tool accuracy |
| CN108000236B (en) * | 2018-01-08 | 2020-11-27 | 内蒙古科技大学 | Device for detecting accelerated wear degradation rule of machine tool linear guide rail pair |
| CN109773588B (en) * | 2019-03-01 | 2021-03-02 | 山东大学 | Method and device for testing performance of digital twin model of machine tool |
| CN109870269B (en) * | 2019-04-08 | 2020-08-14 | 中航飞机起落架有限责任公司 | Calibration method for three-dimensional force measuring platform |
| CN110658723B (en) * | 2019-11-08 | 2020-10-23 | 南京航空航天大学 | Passive force loading self-adaptive drive control method and system |
| CN110907172B (en) * | 2019-11-19 | 2021-09-28 | 南京理工大学 | Device and method for measuring walking precision of rolling linear guide rail pair |
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| CN201037803Y (en) * | 2007-03-28 | 2008-03-19 | 清华大学 | Rolling line guide rail accessory static rigidity experiment platform |
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| CN102095574A (en) * | 2010-11-26 | 2011-06-15 | 南京理工大学 | Joint surface dynamic characteristic parameter testing device of rolling guide rail and testing method thereof |
| CN102262025A (en) * | 2011-04-28 | 2011-11-30 | 清华大学 | Experimental platform for linear rolling guide rail pair |
| CN202676449U (en) * | 2012-06-12 | 2013-01-16 | 西南交通大学 | Load controllable passive type servo-actuated force application linear guide rail pair test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035377A (en) * | 1998-07-17 | 2000-02-02 | Nikon Corp | Characteristic measuring apparatus for mobile vibration actuator |
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|---|---|---|---|---|
| CN201037803Y (en) * | 2007-03-28 | 2008-03-19 | 清华大学 | Rolling line guide rail accessory static rigidity experiment platform |
| CN201177557Y (en) * | 2008-04-08 | 2009-01-07 | 株洲时代新材料科技股份有限公司 | Flexible locater triaxial loading fatigue test tool equipment |
| CN102095574A (en) * | 2010-11-26 | 2011-06-15 | 南京理工大学 | Joint surface dynamic characteristic parameter testing device of rolling guide rail and testing method thereof |
| CN102262025A (en) * | 2011-04-28 | 2011-11-30 | 清华大学 | Experimental platform for linear rolling guide rail pair |
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