CN103913284A - Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method - Google Patents
Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method Download PDFInfo
- Publication number
- CN103913284A CN103913284A CN201410151486.9A CN201410151486A CN103913284A CN 103913284 A CN103913284 A CN 103913284A CN 201410151486 A CN201410151486 A CN 201410151486A CN 103913284 A CN103913284 A CN 103913284A
- Authority
- CN
- China
- Prior art keywords
- test
- dynamic characteristic
- leading screw
- data
- power hammer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method. The test device comprises a test experiment platform and a data acquisition and analysis system. Compared with the prior art, the blank of test of a rolling skid composite guide rail feeding system in the machine tool dynamic characteristic testing field is remedied. The experiment platform is simple in structure, and free of interference and influence of other parts due to the fact that the dynamic characteristic analysis is just conducted on the combination of a rolling combination part, a skidding combination, a double drive feeding system; according to the experiment method, through the design of the stationing position and stationing number, the dynamic characteristic of the experiment platform can be accurately reflected.
Description
Technical field
The invention belongs to the technical field of complete machine tool dynamic analysis, particularly a kind of two drive separate type skid composite guide rails dynamic characteristic test experimental provision and method.
Background technology
Machine tool guideway is as core component crucial in Modern NC Machine Tool feed system, and the dynamic perfromance of its feed system affects rigidity, precision and the precision stability of numerically-controlled machine to a great extent.And skid composite guide rails is little as a kind of frictional resistance simultaneously with rolling guide, exercise performance is good, there is again the guide rail that rail plate load-bearing capacity is strong, resistance to shock is good, in its structure owing to having rolling faying face and the face that is slidably connected simultaneously, contact condition complexity, and the dynamics of its feed system is also often the weak link in Machine Tool Feeding System, need to pays close attention to and study.In the prior art, there is following related invention:
Document 1: Chinese patent: rail plate faying face dynamic characteristic parameter proving installation and method of testing thereof, application number: 201010622646.5 and document 2: Chinese patent: face dynamic characteristic test device and method of testing are slidably connected, application number: CN201010617228.7, above-mentioned two patents are all dynamic characteristic test devices of independent rail plate.
Document 3: Chinese patent: joint surface dynamic characteristic parameter testing device of rolling guide rail and method of testing thereof, application number: 2010560911.1 and document 4: Chinese patent: dynamic characteristic parameter recognition system of joint surfaces of rolling guide rails and recognition methods, application number: 201010298969.3, above-mentioned two patents are all dynamic characteristic test devices of independent rolling guide.
As from the foregoing, in (1) prior art, lack dynamic characteristic test device and the method for testing for double lead-screw separate type skid composite guide rails feed system; (2) effectively experiment is not combined with finite element analysis; (3) can not be generalized to the existing face that is slidably connected, have again in the complicated feed system of rolling faying face.
Summary of the invention
The object of the present invention is to provide a kind of two drive separate type skid composite guide rails dynamic characteristic test experimental provision and method.
The technical solution that realizes the object of the invention is: a kind of two separate type skid composite guide rails dynamic characteristic test test units that drive, comprise test platform and data collection and analysis system, described testing experiment platform comprises base, leading screw, rail plate, rolling guide, web joint;
The leading screw, rail plate and the rolling guide that are parallel to each other are connected on base, the quantity of described leading screw, rail plate and rolling guide is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint is arranged on the top of leading screw, rail plate and rolling guide, connects together;
Described data collection and analysis system comprises acceleration transducer, power hammer, charge amplifier, data acquisition unit and computing machine; Wherein acceleration transducer is arranged on test platform, for the dynamic characteristic parameter of collecting test platform, power hammer is arranged near the turning of plane on web joint, and described acceleration transducer is all connected with charge amplifier with power hammer, and charge amplifier is connected with computing machine by data acquisition unit.
Based on above-mentioned two method of testings of driving separate type skid composite guide rails feeding dynamic characteristic test test unit, comprise the following steps:
Step 1, installation testing platform: the leading screw, rail plate and the rolling guide that on base, are connected and are parallel to each other, the quantity of described leading screw, rail plate and rolling guide is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint is arranged on the top of leading screw, rail plate and rolling guide, connects together;
Step 2, installation data collection and analytic system: first degree of will speed up sensor setting one layout on, described acceleration transducer all layout meet 2 requirement: A, layouting to show the profile of test platform model; B, layouting is positioned at each contact site dynamic characteristic test point; Then by data line, three-dimensional acceleration transducer output terminal is connected with the input end of charge amplifier, charge amplifier output terminal is connected with data acquisition unit input end, again data acquisition unit is crossed to data line with computer expert and be connected, the output terminal of power hammer is connected with the input end of power amplifier; Near the turning of power hammer beating position plane on web joint, described power hammer can knock test platform by three of a cartesian coordinate system direction, obtains the three-dimensional dynamic Characteristic Data of test platform;
Step 3, test parameter is set, is specially: determine frequency sweeping scope, the improvement factor of the enlargement factor of charge amplifier, the electric current of power amplifier and voltage, power hammer power sensor and three-dimensional acceleration transducer;
Step 4, start test, along direction percussion power hammer of cartesian coordinate system, obtain experimental data, return to afterwards step 2, and sensor is placed into the next one layouts above, layout and all tested until all; Change power hammer knocks direction, repeats all tests of layouting, and so circulation, until complete the data test of three directions; After having tested, save data, obtains natural frequency and the vibration shape of experimental system.
The present invention compared with prior art, there is following remarkable advantage: (1) the present invention has made up the blank of machine dynamic characteristics field tests aspect double lead-screw separate type skid composite guide rails feed system, first the two feed systems of driving in rolling joint portion and the portion that is slidably connected are combined and carry out dynamic analysis; (2) method of the present invention can be generalized in the complicated feed system dynamic characteristic experiment of various lathes; (3) test platform structure of the present invention is simple, only drives for rolling joint portion, the portion pair that is slidably connected the dynamic analysis that feed system combines, and is not subject to other positions disturb and affect; (4) test method of the present invention is by the position of layouting and the design of quantity, the dynamic perfromance of the platform of reaction test accurately.
Accompanying drawing explanation
Fig. 1 is double lead-screw separate type skid composite guide rails feeding system structure of the present invention and dynamic characteristic experiment equipments overall structure figure.
Fig. 2 is the acceleration transducer cloth point diagram of dynamic characteristic experiment test of the present invention.
Fig. 3 is the skeleton diagram that dynamic characteristic test software MaCras of the present invention sets up.
The implication of number in the figure representative is:
1-base, 2-leading screw, 3-rail plate, 4-rolling guide, 5-web joint, 6-acceleration transducer, 7-power hammer, 8-charge amplifier, 9-data acquisition unit, 10-computing machine.
Embodiment
In conjunction with Fig. 1 to Fig. 3, one of the present invention pair is driven separate type skid composite guide rails feeding dynamic characteristic test test unit and is comprised test platform and data collection and analysis system, and described testing experiment platform comprises base 1, leading screw 2, rail plate 3, rolling guide 4, web joint 5;
The leading screw 2, rail plate 3 and the rolling guide 4 that are parallel to each other are connected on base 1, the quantity of described leading screw 2, rail plate 3 and rolling guide 4 is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint 5 is arranged on the top of leading screw 2, rail plate 3 and rolling guide 4, connects together;
Described data collection and analysis system comprises acceleration transducer 6, power hammer 7, charge amplifier 8, data acquisition unit 9 and computing machine 10; Wherein acceleration transducer 6 is arranged on test platform, for the dynamic characteristic parameter of collecting test platform, power hammer 7 is arranged near the turning of plane on web joint 5, described acceleration transducer 6 is all connected with charge amplifier 8 with power hammer 7, and charge amplifier 8 is connected with computing machine 10 by data acquisition unit 9.
A kind of two method of testings of driving separate type skid composite guide rails feeding dynamic characteristic test test unit of the present invention, comprise the following steps:
Step 1, installation testing platform: the leading screw 2, rail plate 3 and the rolling guide 4 that on base 1, are connected and are parallel to each other, the quantity of described leading screw 2, rail plate 3 and rolling guide 4 is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint 5 is arranged on the top of leading screw 2, rail plate 3 and rolling guide 4, connects together;
Step 2, installation data collection and analytic system: first degree of will speed up sensor 6 be arranged on one layout upper, described acceleration transducer 6 all layout meet 2 requirement: A, layouting to show the profile of test platform model; B, layouting is positioned at each contact site dynamic characteristic test point; Then by data line, three-dimensional acceleration transducer 6 output terminals are connected with the input end of charge amplifier 8, charge amplifier 8 output terminals are connected with data acquisition unit 9 input ends, data acquisition unit 9 is connected by data line with computer 10, the output terminal of power hammer 7 is connected with the input end of power amplifier 8 again; Power is hammered into shape near the turning of 7 beating positions plane on web joint 5, and described power hammer 7 can knock test platform by three of a cartesian coordinate system direction, obtains the three-dimensional dynamic Characteristic Data of test platform;
Step 3, test parameter is set, is specially: determine frequency sweeping scope, the enlargement factor of charge amplifier 8, the electric current of charge amplifier 8 and voltage, power are hammered the improvement factor of 7 power sensors and three-dimensional acceleration transducer 6 into shape;
Step 4, start test, along direction percussion power hammer of cartesian coordinate system, obtain experimental data, return to afterwards step 2, and sensor is placed into the next one layouts above, layout and all tested until all; Change power hammer knocks direction, repeats all tests of layouting, and so circulation, until complete the data test of three directions; After having tested, save data, obtains natural frequency and the vibration shape of experimental system.
Below in conjunction with embodiment, the present invention is done to further detailed description:
Embodiment 1
A kind of pair is driven separate type skid composite guide rails dynamic characteristic test test unit, comprises test platform and data collection and analysis system, and described testing experiment platform comprises base 1, leading screw 2, rail plate 3, rolling guide 4, web joint 5;
The leading screw 2, rail plate 3 and the rolling guide 4 that are parallel to each other are connected on base 1, the quantity of described leading screw 2, rail plate 3 and rolling guide 4 is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint 5 is arranged on the top of leading screw 2, rail plate 3 and rolling guide 4, connects together;
Described data collection and analysis system comprises acceleration transducer 6, power hammer 7, charge amplifier 8, data acquisition unit 9 and computing machine 10; Wherein acceleration transducer 6 is arranged on test platform, for the dynamic characteristic parameter of collecting test platform, power hammer 7 is arranged near the turning of plane on web joint 5, described acceleration transducer 6 is all connected with charge amplifier 8 with power hammer 7, and charge amplifier 8 is connected with computing machine 10 by data acquisition unit 9.
Based on a method of testing for above-mentioned double lead-screw separate type skid composite guide rails feeding dynamic characteristic test test unit, comprise the following steps:
Step 1, installation testing platform: the leading screw 2, rail plate 3 and the rolling guide 4 that on base 1, are connected and are parallel to each other, the quantity of described leading screw 2, rail plate 3 and rolling guide 4 is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint 5 is arranged on the top of leading screw 2, rail plate 3 and rolling guide 4, connects together;
Step 2, installation data collection and analytic system: first degree of will speed up sensor 6 be arranged on one layout upper, described acceleration transducer 6 all layout meet 2 requirement: A, layouting to show the profile of test platform model; B, layouting is positioned at each contact site dynamic characteristic test point; As described in Figure 2.Because this test platform structure is simple, need image data simple, the quantity of layouting and density needn't be too large, promote the use of in process in the present invention, for the different requirements of different experiments object, can adjust voluntarily layout quantity and density.Then by data line, three-dimensional acceleration transducer 6 output terminals are connected with the input end of charge amplifier 8, charge amplifier 8 output terminals are connected with data acquisition unit 9 input ends, data acquisition unit 9 is connected by data line with computer 10, the output terminal of power hammer 7 is connected with the input end of power amplifier 8 again; Power is hammered into shape near the turning of 7 beating positions plane on web joint 5, and described power hammer 7 can knock test platform by three of a cartesian coordinate system direction, obtains the three-dimensional dynamic Characteristic Data of test platform;
Machinery and Constructional Modal Analysis MaCras module in the vibration of installing in step 3, startup computer and dynamic signal acquisition analytic system V7.1, carry out modeling and measurement parameter setting, be specially: determine frequency sweeping scope, the enlargement factor of charge amplifier 8, the electric current of power amplifier 8 and voltage, power are hammered the improvement factor of 7 power sensors and three-dimensional acceleration transducer 6 into shape; Set up experiment porch skeleton diagram by interconnecting between layouting, as shown in Figure 3;
Step 4, start test, hammer and knock Fig. 1 power hammer point by power, draw output frequency response function, choose and to obtain good experimental data.Sensor is placed into next position of layouting, repeats above-mentioned steps, until all the layouting of Fig. 2 all tests.Change power hammer knocks direction, repeats above-mentioned all tests of layouting.Until knocking all, three-dimensional completes.Test completes, and save data obtains natural frequency and the vibration shape of experimental system;
Step 5, build above-mentioned two finite element model that drives separate type skid composite guide rails feed system and dynamic property tester thereof, and carry out finite element analysis, draw with above-mentioned excitation and test the natural frequency that obtains corresponding frequency and the vibration shape;
Result and the test bed testing result out of step 6, contrast finite element analysis, thereby the accuracy of demonstration test platform and method of testing.Comparative result is as shown in table 1:
The comparison of table 1 simulation and experiment result
| Order | Test frequency (Hz) | Simulation frequency (Hz) | Error % |
| 5 | 98.5 | 110.3 | 12 |
| 6 | 179.1 | 199.0 | 11.1 |
| 7 | 207.0 | 226.3 | 9.3 |
| 8 | 230.4 | 261.3 | 13.4 |
| 9 | 283.2 | 312.7 | 10.4 |
| 10 | 459.6 | 499.6 | 8.7 |
As shown in Table 1, experimental result and simulation analysis error are little, in tolerance interval, are the method for testings that a kind of degree of accuracy is higher.Can promote the use of.
Claims (2)
1. two separate type skid composite guide rails dynamic characteristic test test unit that drives, it is characterized in that, comprise test platform and data collection and analysis system, described testing experiment platform comprises base [1], leading screw [2], rail plate [3], rolling guide [4], web joint [5];
The leading screw [2], rail plate [3] and the rolling guide [4] that are parallel to each other are connected on base [1], the quantity of described leading screw [2], rail plate [3] and rolling guide [4] is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint [5] is arranged on the top of leading screw [2], rail plate [3] and rolling guide [4], connects together;
Described data collection and analysis system comprises acceleration transducer [6], power hammer [7], charge amplifier [8], data acquisition unit [9] and computing machine [10]; Wherein acceleration transducer [6] is arranged on test platform, for the dynamic characteristic parameter of collecting test platform, power hammer [7] is arranged near the turning of the upper plane of web joint [5], described acceleration transducer [6] is all connected with charge amplifier [8] with power hammer [7], and charge amplifier [8] is connected with computing machine [10] by data acquisition unit [9].
2. the method for testing based on double lead-screw separate type skid composite guide rails feeding dynamic characteristic test test unit claimed in claim 1, is characterized in that, comprises the following steps:
Step 1, installation testing platform: the leading screw [2], rail plate [3] and the rolling guide [4] that on base [1], are connected and are parallel to each other, the quantity of described leading screw [2], rail plate [3] and rolling guide [4] is two, two rolling guides are positioned at the inner side of two rail plates, the arranged outside two rhizoid thick sticks of two rail plates, web joint [5] is arranged on the top of leading screw [2], rail plate [3] and rolling guide [4], connects together;
Step 2, installation data collection and analytic system: first degree of will speed up sensor [6] be arranged on one layout upper, described acceleration transducer [6] all layout meet 2 requirement: A, layouting to show the profile of test platform model; B, layouting is positioned at each contact site dynamic characteristic test point; Then by data line, three-dimensional acceleration transducer [6] output terminal is connected with the input end of charge amplifier [8], charge amplifier [8] output terminal is connected with data acquisition unit [9] input end, data acquisition unit [9] is connected by data line with computer [10], the output terminal of power hammer [7] is connected with the input end of power amplifier [8] again; Power hammer [7] beating position is near the turning of the upper plane of web joint [5], and described power hammer [7] can knock test platform by three of a cartesian coordinate system direction, obtains the three-dimensional dynamic Characteristic Data of test platform;
Step 3, test parameter is set, is specially: determine frequency sweeping scope, the improvement factor of the enlargement factor of charge amplifier [8], the electric current of charge amplifier [8] and voltage, power hammer [7] power sensor and three-dimensional acceleration transducer [6];
Step 4, start test, along direction percussion power hammer of cartesian coordinate system, obtain experimental data, return to afterwards step 2, and sensor is placed into the next one layouts above, layout and all tested until all; Change power hammer knocks direction, repeats all tests of layouting, and so circulation, until complete the data test of three directions; After having tested, save data, obtains natural frequency and the vibration shape of experimental system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151486.9A CN103913284A (en) | 2014-04-16 | 2014-04-16 | Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151486.9A CN103913284A (en) | 2014-04-16 | 2014-04-16 | Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103913284A true CN103913284A (en) | 2014-07-09 |
Family
ID=51039135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410151486.9A Pending CN103913284A (en) | 2014-04-16 | 2014-04-16 | Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103913284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941023A (en) * | 2020-07-27 | 2020-11-17 | 天津大学 | Measuring device and method for guiding low-stress assembly of linear feeding guide rail |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008164578A (en) * | 2006-12-06 | 2008-07-17 | Nsk Ltd | Device for detecting physical quantity, and rolling device |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN103217287A (en) * | 2013-03-28 | 2013-07-24 | 南京理工大学 | Device and method for testing static and dynamic characteristics of rolling support straight feed system |
| CN103323233A (en) * | 2013-05-24 | 2013-09-25 | 南京理工大学 | Device and method for testing dynamic characteristics of single-screw or double-screw rolling supporting linear feed system |
-
2014
- 2014-04-16 CN CN201410151486.9A patent/CN103913284A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008164578A (en) * | 2006-12-06 | 2008-07-17 | Nsk Ltd | Device for detecting physical quantity, and rolling device |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN103217287A (en) * | 2013-03-28 | 2013-07-24 | 南京理工大学 | Device and method for testing static and dynamic characteristics of rolling support straight feed system |
| CN103323233A (en) * | 2013-05-24 | 2013-09-25 | 南京理工大学 | Device and method for testing dynamic characteristics of single-screw or double-screw rolling supporting linear feed system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941023A (en) * | 2020-07-27 | 2020-11-17 | 天津大学 | Measuring device and method for guiding low-stress assembly of linear feeding guide rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103900778A (en) | Device and method for dynamic characteristic testing experiment of double-drive sliding block type rolling and sliding composite guide rail | |
| CN102183363B (en) | Dynamic characteristic parameter test device and method of sliding guide rail junction surface | |
| CN103217267B (en) | Skid composite guide rails joint portion dynamic characteristic parameter proving installation and method of testing thereof | |
| CN204116284U (en) | A kind of aircraft cellular structural composite material knocks and detects and non-destructive tests device | |
| CN102012305B (en) | System and method for recognizing rolling guide rail joint surface dynamic characteristic parameters | |
| CN103323233B (en) | Device and method for testing dynamic characteristics of single-screw or double-screw rolling supporting linear feed system | |
| CN101644624B (en) | Steering test bench of electrical-closed tracked vehicle transmission device | |
| CN103217287B (en) | Rolling support linear feeding system static and dynamic performance proving installation and method of testing | |
| CN102095574A (en) | Joint surface dynamic characteristic parameter testing device of rolling guide rail and testing method thereof | |
| CN102052999B (en) | Fixed joint surface unit area dynamic property identification experiment device and identification method thereof | |
| CN104050317B (en) | Method for obtaining dynamic accuracy of machine tool | |
| CN206269985U (en) | Machine Joint Surfaces normal stiffness test device | |
| CN103176121A (en) | Flying probe tester | |
| CN103913284A (en) | Double drive separating rolling skid composite guide rail dynamic characteristic test experiment device and method | |
| CN104215890A (en) | Automobile filter capacitor automatically testing machine | |
| CN104569814B (en) | A kind of DC traction motor health status real-time analysis method based on approximate entropy | |
| CN203241235U (en) | Device for testing dynamic characteristics of single/double-screw rolling support linear feed system | |
| CN105841857A (en) | Parallel-type five-dimensional force sensor | |
| CN102589675B (en) | Method for measuring mechanical resonance frequency by using servo driver | |
| CN209296262U (en) | A kind of mould measurement device based on motion control | |
| CN203869879U (en) | Automobile shock absorber test system | |
| CN202159455U (en) | Integrated fault diagnosis experiment table for car power transmission system | |
| CN204798786U (en) | Trainer is assisted in boxing based on pressure analysis | |
| CN104697480B (en) | A kind of automatic test approach of multiple sensors of different null positions | |
| CN203687812U (en) | Automobile instrument board crossbeam steering column hand-held testing fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140709 |