CN108978739A - A kind of experimental provision of analog basis practical distortion - Google Patents
A kind of experimental provision of analog basis practical distortion Download PDFInfo
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- CN108978739A CN108978739A CN201810983581.3A CN201810983581A CN108978739A CN 108978739 A CN108978739 A CN 108978739A CN 201810983581 A CN201810983581 A CN 201810983581A CN 108978739 A CN108978739 A CN 108978739A
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- hydraulic cylinder
- lathe
- deformation
- piston hydraulic
- machine tool
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
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- General Engineering & Computer Science (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention discloses a kind of experimental provisions of analog basis practical distortion, including lathe model, machine tool basic, connecting plate, single-piston hydraulic cylinder, ground, shaking platform, monitoring adjusting platform, displacement sensor, hydraulic pump, limiter, ball screw assembly, model casing.Device is fixed in model casing, four single-piston hydraulic cylinders are evenly distributed in the bottom of foundation, last a single-piston hydraulic cylinder is fixed in four faces all around on basis simultaneously, hydraulic cylinder can slide in connecting plate, the part of each hydraulic cylinder is installed by displacement detector, the foundation deformation amount of available desired deformation simultaneously.By control the moving up and down of foundation bottom hydraulic cylinder, the transverse shifting of side machine tool basic, the differential settlement of analog basis is obtained under basic fixed deformation, the influence to the displacement deformation of lathe.To obtain the rule of the machine tool variety under the basic various modifications of lathe, lay the foundation for the stability of lathe.
Description
Technical field
The present invention is a kind of experimental provision of simulated machine tool practical distortion, is related to grinding for heavy digital control machine tool and foundation
Study carefully field.
Background technique
The requirement of the precision and stability of basic heavy digital control machine tool, it is contemplated that basis is the most basic weight of entire lathe
Structure is wanted, basic stability directly affects the machining accuracy of lathe, it is contemplated that the practical distortion on bedding basis is to machine tooling
Stabilization, the relationship between machine tool variety and basis can be found, make better scheme optimization basis.
The precision and stability research of heavy machine tool is concentrated mainly on the critical piece of lathe at present, due to heavy machine tool
Heavy load, large span, component structural it is big, so research all concentrates on the combination face of machine body and each components
Point.And the differential settlement of machine tool basic directly affects the machining accuracy of lathe, so studying foundation deformation at ambient conditions
Influence to machine tool accuracy has great significance.
Summary of the invention
The purpose of the present invention is to provide it is a kind of can with the experimental provision of analog basis practical distortion, study machine tool variety and
The relationship of foundation deformation provides thinking for the design of machine tool basic.
The present invention is realized using following technological means
A kind of experimental provision of analog basis practical distortion, the device include lathe model 1, machine tool basic 2, connecting plate 3,
Single-piston hydraulic cylinder 4, ground 5, shaking platform 6, monitoring adjust platform 7, displacement sensor 8, pressure sensor 9, hydraulic pump 10,
Limiter 11, ball screw assembly, 12, model casing 13.
Device is fixed in model casing 13, and the top of machine tool basic 2 is divided into the mixing that armored concrete lower part is rubber
Structure is evenly distributed with four single-piston hydraulic cylinders 4 in 2 bottom surface of machine tool basic, while each on four faces all around of machine tool basic 2
Fix a single-piston hydraulic cylinder 4.Each hydraulic cylinder 4 can slide in the sliding rail of connecting plate 3, the other end of hydraulic cylinder 4 and
Ball screw assembly, 12 connects, and ball screw assembly, 12 controls position of the single-piston hydraulic cylinder 4 in connecting plate 3.11 pairs of lists of limiter
Piston hydraulic cylinder 4 plays stroke protective effect.Each single-piston hydraulic cylinder 4 installs displacement sensor 8 and pressure sensor simultaneously
9, control the foundation deformation amount of the available desired deformation of hydraulic pump 10.Adjust position of the single-piston hydraulic cylinder 4 in connecting plate 3
It postpones, controls the moving up and down of piston rod, the transverse shifting of side machine tool basic 2 in single-piston hydraulic cylinder 4, it can be with analog basis
Differential settlement, obtain under basic fixed deformation, the influence to 1 displacement deformation of lathe model.Pass through the peace of shaking platform 6
Dress, simulating influences the deformation of experimental provision with other machine vibrations of workshop or life vibration.The bottom of single-piston hydraulic cylinder 4
For ground 5.
The deflection of single-piston hydraulic cylinder 4 can adjust platform 7 by monitoring and control, and displacement sensor 8 can achieve reality
When the effect that measures.Ess-strain or displacement sensor can be arranged on lathe model again, analyzes different foundation deformations and vibration
In the case where interference, the lathe ess-strain under the basic various modifications of lathe and the rule of deformation are obtained, is the stabilization of lathe
Property lays the foundation.
The advantages of this experimental provision, is:
(1) this experimental provision is simple and convenient, it can be achieved that repeatedly counting, the experimental program of large deformation.
(2) large carrying capacity of Hydraulic Elements meets the requirement of experiment deflection.
(3) the specified deflection of exact position may be implemented in the present apparatus, improves experiment accuracy.
(4) controllability of machine tool basic deformation is provided fundamental basis to study the deformation of lathe.
Detailed description of the invention
Fig. 1 is the location drawing of experimental provision.
Fig. 2 is the top view of experimental provision.
Fig. 3 is the structure chart of experimental provision.
Fig. 4 is the main view of experimental provision internal structure.
Fig. 5 is the top view of experimental provision internal structure.
Fig. 6 is the bottom view of experimental provision internal structure.
Fig. 7 is the structure chart of experimental provision internal structure.
Fig. 8 is the cross-sectional view of single-piston hydraulic cylinder.
Fig. 9 is hydraulic pump front view.
In figure: 1, lathe model, 2, machine tool basic, 3, connecting plate, 4, single-piston hydraulic cylinder, 5, ground, 6, shaking platform,
7, monitoring adjusting platform, 8 displacement sensors, 9, pressure sensor, 10, hydraulic pump, 11, limiter, 12, ball screw assembly, 13,
Model casing.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings of the specification.
A kind of experimental provision of analog basis practical distortion, the device include lathe model 1, machine tool basic 2, connecting plate 3,
Single-piston hydraulic cylinder 4, ground 5, shaking platform 6, monitoring adjust platform 7, displacement sensor 8, pressure sensor 9, hydraulic pump 10,
Limiter 11, ball screw assembly, 12, model casing 13.
Device is fixed in model casing 13, and basis is the mixed structure that top is divided into that armored concrete lower part is rubber,
Four single-piston hydraulic cylinders 4, while each fixation on four faces all around of machine tool basic 2 are evenly distributed in 2 bottom surface of machine tool basic
One single-piston hydraulic cylinder 4.Each hydraulic cylinder 4 can slide in the sliding rail of connecting plate 3, the other end and ball of hydraulic cylinder 4
Lead screw pair 12 connects, and the rotation of ball screw assembly, 12 drives the movement of single-piston hydraulic cylinder 4, and ball screw assembly, 12 is precisely controlled single work
Fill in position of the hydraulic cylinder 4 in connecting plate 3.Limiter 11 plays stroke protective effect.Each single-piston hydraulic cylinder 4 is installed simultaneously
Displacement sensor 8 and pressure sensor 9 control the foundation deformation amount of the available desired deformation of hydraulic pump 10.
Single-piston hydraulic cylinder 4 is adjusted behind the position in connecting plate 3, piston rod is upper in control single-piston hydraulic cylinder 4
Lower movement, side machine tool basic 2 transverse shifting, can be obtained under basic fixed deformation with the differential settlement of analog basis, it is right
The influence of 1 displacement deformation of lathe model.By the installation of shaking platform 6, other machine vibrations with workshop or life vibration are simulated
It is dynamic that the deformation of experimental provision is influenced.
Rotating each ball screw assembly, 12 slides single-piston hydraulic cylinder 4 in connecting plate 3, so that single-piston hydraulic cylinder
4 are moved to the location point that machine tool basic needs to settle.
The operational situation that hydraulic pump 10 is controlled by monitor supervision platform 7, to each single-piston hydraulic cylinder 4 control oil inlet and outlet
Pressure realizes the sedimentation and protrusion of machine tool basic 2.
Shaking platform 6 inputs the excitation wanted, simulates the machine tool environment condition under true workshop, based on settle and mention
For true simulated environment.
The deflection of machine tool basic can be monitored in real time in displacement sensor 8, and feedback result is sent to monitor supervision platform 7,
Realize that monitoring and feedback combine.
After the requirement condition for reaching analysis machine tool variety, ess-strain or displacement sensing can be arranged on lathe model again
Device in the case where analyzing different foundation deformations and vibration interference, obtains the lathe ess-strain under the basic various modifications of lathe
With the rule of deformation, lay the foundation for the stability of lathe.
Claims (7)
1. a kind of experimental provision of analog basis practical distortion, it is characterised in that: the device includes lathe model (1), lathe base
Plinth (2), connecting plate (3), single-piston hydraulic cylinder (4), ground (5), shaking platform (6), monitoring adjust platform (7), displacement sensing
Device (8), pressure sensor (9), hydraulic pump (10), limiter (11), ball screw assembly, (12) and model casing (13)；
Device is fixed in model casing (13), and the top of machine tool basic (2) is divided into the mixing that armored concrete lower part is rubber
Structure is evenly distributed with four single-piston hydraulic cylinders (4) in machine tool basic (2) bottom surface, while at all around four of machine tool basic (2)
It is each on face to fix a single-piston hydraulic cylinder (4)；Each single-piston hydraulic cylinder (4) can slide in the sliding rail of connecting plate (3),
The other end and ball screw assembly, (12) of single-piston hydraulic cylinder (4) connect, and ball screw assembly, (12) controls single-piston hydraulic cylinder (4)
Position in connecting plate (3)；Limiter (11) plays stroke protective effect to single-piston hydraulic cylinder (4)；Each single-piston liquid
Cylinder pressure (4) installs displacement sensor (8) and pressure sensor (9) simultaneously, control hydraulic pump (10) available desired deformation
Foundation deformation amount；Single-piston hydraulic cylinder (4) is adjusted behind the position in connecting plate (3), it is living in control single-piston hydraulic cylinder (4)
The moving up and down of stopper rod, the transverse shifting of side machine tool basic (2), the differential settlement of analog basis obtain that basis is fixed to be become
Influence under shape, to lathe model (1) displacement deformation；By the installation of shaking platform (6), other lathes simulated with workshop shake
Dynamic or life vibration influences the deformation of experimental provision；The bottom of single-piston hydraulic cylinder (4) is ground (5).
2. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: single-piston is hydraulic
The deflection of cylinder (4) can adjust platform (7) control by monitoring, and displacement sensor (8) has the function that real-time measurement；In lathe
Arrange that ess-strain or displacement sensor obtain lathe in the case where analyzing different foundation deformations and vibration interference on model
The rule of lathe ess-strain under basic various modifications and deformation lays the foundation for the stability of lathe.
3. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: adjust single work
Hydraulic cylinder (4) are filled in behind the position in connecting plate (3), the moving up and down of piston rod, side machine in control single-piston hydraulic cylinder (4)
The transverse shifting of bed basic (2), the differential settlement of analog basis obtain under basic fixed deformation, are displaced to lathe model (1)
The influence of deformation；By the installation of shaking platform (6), simulate with other machine vibrations of workshop or life vibration to experimental provision
Deformation influence.
4. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: rotate each rolling
Ballscrew pair (12) makes single-piston hydraulic cylinder (4) sliding in connecting plate (3), so that single-piston hydraulic cylinder (4) is moved to machine
The location point that bed basis needs to settle.
5. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: adjusted by monitoring
The operational situation for saving platform (7) control hydraulic pump (10), it is real to the pressure of each single-piston hydraulic cylinder (4) control oil inlet and outlet
The sedimentation and protrusion of existing machine tool basic (2).
6. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: shaking platform
(6) input the excitation wanted, simulate the machine tool environment condition under true workshop, based on sedimentation true analog loop is provided
Border.
7. a kind of experimental provision of analog basis practical distortion according to claim 1, it is characterised in that: displacement sensor
(8) deflection of real-time monitoring machine tool basic, and feedback result is sent to monitoring and adjusts platform (7), realize monitoring and feedback
It combines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983581.3A CN108978739B (en) | 2018-08-27 | 2018-08-27 | Experimental device for simulating actual deformation of foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983581.3A CN108978739B (en) | 2018-08-27 | 2018-08-27 | Experimental device for simulating actual deformation of foundation |
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| Publication Number | Publication Date |
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| CN108978739A true CN108978739A (en) | 2018-12-11 |
| CN108978739B CN108978739B (en) | 2020-11-27 |
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| CN201810983581.3A Active CN108978739B (en) | 2018-08-27 | 2018-08-27 | Experimental device for simulating actual deformation of foundation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255305A (en) * | 2011-06-09 | 2012-12-27 | Takenaka Komuten Co Ltd | Foundation load testing method |
| CN103669430A (en) * | 2013-12-19 | 2014-03-26 | 北京工业大学 | Interactional experimental device for power tool-base-foundation system |
| CN104596744A (en) * | 2014-11-05 | 2015-05-06 | 河南省机械设计研究院有限公司 | Strength test bed for tractor protective device |
| CN104841891A (en) * | 2015-04-06 | 2015-08-19 | 安庆旭东工贸有限责任公司 | High accuracy hand molding sandbox |
| CN105527389A (en) * | 2016-03-02 | 2016-04-27 | 山东交通学院 | Jack-based experiment model and method for simulating uneven settlement of foundation |
-
2018
- 2018-08-27 CN CN201810983581.3A patent/CN108978739B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255305A (en) * | 2011-06-09 | 2012-12-27 | Takenaka Komuten Co Ltd | Foundation load testing method |
| CN103669430A (en) * | 2013-12-19 | 2014-03-26 | 北京工业大学 | Interactional experimental device for power tool-base-foundation system |
| CN104596744A (en) * | 2014-11-05 | 2015-05-06 | 河南省机械设计研究院有限公司 | Strength test bed for tractor protective device |
| CN104841891A (en) * | 2015-04-06 | 2015-08-19 | 安庆旭东工贸有限责任公司 | High accuracy hand molding sandbox |
| CN105527389A (en) * | 2016-03-02 | 2016-04-27 | 山东交通学院 | Jack-based experiment model and method for simulating uneven settlement of foundation |
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| CN108978739B (en) | 2020-11-27 |
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